{
    "document": {
        "category": "csaf_base",
        "csaf_version": "2.0",
        "distribution": {
            "tlp": {
                "label": "WHITE"
            }
        },
        "lang": "en",
        "notes": [
            {
                "category": "legal_disclaimer",
                "text": "The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this portal to enhance access to its information and vulnerabilities. The use of this information is subject to the following terms and conditions:\n\nThe vulnerabilities disclosed in this portal are gathered by NCSC-NL from a variety of open sources, which the user can retrieve from other platforms. NCSC-NL makes every reasonable effort to ensure that the content of this portal is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or real-time keeping up-to-date. NCSC-NL does not control nor guarantee the accuracy, relevance, timeliness or completeness of information obtained from these external sources. The vulnerabilities disclosed in this portal are intended solely for the convenience of professional parties to take appropriate measures to manage the risks posed to the cybersecurity. No rights can be derived from the information provided therein.\n\nNCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of the vulnerabilities disclosed in this portal. This includes damage resulting from the inaccuracy of incompleteness of the information contained in it.\nThe information on this page is subject to Dutch law. All disputes related to or arising from the use of this portal regarding the disclosure of vulnerabilities will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings."
            }
        ],
        "publisher": {
            "category": "coordinator",
            "contact_details": "cert@ncsc.nl",
            "name": "National Cyber Security Centre",
            "namespace": "https://www.ncsc.nl/"
        },
        "title": "CVE-2026-56164",
        "tracking": {
            "current_release_date": "2026-09-07T10:31:32.984262Z",
            "generator": {
                "date": "2026-02-17T15:00:00Z",
                "engine": {
                    "name": "V.E.L.M.A",
                    "version": "1.7"
                }
            },
            "id": "CVE-2026-56164",
            "initial_release_date": "2026-07-14T08:49:28.924039Z",
            "revision_history": [
                {
                    "date": "2026-07-14T08:49:28.924039Z",
                    "number": "1",
                    "summary": "NCSC Score created."
                },
                {
                    "date": "2026-07-14T17:42:29.086838Z",
                    "number": "2",
                    "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (1).| CWES updated (1)."
                },
                {
                    "date": "2026-07-14T17:42:31.483513Z",
                    "number": "3",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-07-14T17:48:23.843625Z",
                    "number": "4",
                    "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products created (3).| References created (1).| CWES updated (1)."
                },
                {
                    "date": "2026-07-14T17:48:25.508006Z",
                    "number": "5",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-07-14T18:05:53.993765Z",
                    "number": "6",
                    "summary": "Source connected.| CVE status created. (valid)| News created (1)."
                },
                {
                    "date": "2026-07-14T18:05:55.847787Z",
                    "number": "7",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-07-14T18:11:47.210171Z",
                    "number": "8",
                    "summary": "Source connected.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (3).| Product Threats created (6).| Product Remediations created (3).| CWES updated (1).| Exploitable created."
                },
                {
                    "date": "2026-07-14T18:11:49.746107Z",
                    "number": "9",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-07-14T18:42:06.672725Z",
                    "number": "10",
                    "summary": "Source connected.| CVE status created. (valid)"
                },
                {
                    "date": "2026-07-14T19:07:36.079380Z",
                    "number": "11",
                    "summary": "Source connected.| CVE status created. (valid)| Description created for source.| Products connected (1).| Exploits created (1).| References created (2).| CWES updated (1)."
                },
                {
                    "date": "2026-07-14T19:07:38.253609Z",
                    "number": "12",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-07-14T20:03:48.744353Z",
                    "number": "13",
                    "summary": "References created (1).| Unknown change."
                },
                {
                    "date": "2026-07-14T20:09:15.558018Z",
                    "number": "14",
                    "summary": "References created (1)."
                },
                {
                    "date": "2026-07-14T20:11:48.441392Z",
                    "number": "15",
                    "summary": "Source connected.| CVE status created. (valid)| News created (1)."
                },
                {
                    "date": "2026-07-14T20:12:02.336657Z",
                    "number": "16",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-07-14T21:35:17.249340Z",
                    "number": "17",
                    "summary": "Products created (1).| Product Identifiers created (3).| Products connected (2)."
                },
                {
                    "date": "2026-07-14T21:35:20.680188Z",
                    "number": "18",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-07-15T02:41:47.396763Z",
                    "number": "19",
                    "summary": "Source created.| CVE status created. (valid)"
                },
                {
                    "date": "2026-07-15T06:47:52.268228Z",
                    "number": "20",
                    "summary": "Source connected.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (3).| Exploits created (1).| References created (1).| Exploitable created."
                },
                {
                    "date": "2026-07-15T07:53:32.367005Z",
                    "number": "21",
                    "summary": "Source connected.| CVE status created. (valid)| Products connected (16).| References created (98)."
                },
                {
                    "date": "2026-07-15T07:53:38.187614Z",
                    "number": "22",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-07-15T08:29:40.876365Z",
                    "number": "23",
                    "summary": "Source created.| CVE status created. (valid)| News created (1)."
                },
                {
                    "date": "2026-07-15T08:29:43.070880Z",
                    "number": "24",
                    "summary": "Source connected.| CVE status created. (valid)| News created (1)."
                },
                {
                    "date": "2026-07-15T08:29:44.222045Z",
                    "number": "25",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-07-15T10:05:23.584702Z",
                    "number": "26",
                    "summary": "Source connected.| CVE status created. (valid)| News created (1)."
                },
                {
                    "date": "2026-07-17T08:30:50.413776Z",
                    "number": "27",
                    "summary": "Source created.| CVE status created. (valid)| News created (1)."
                },
                {
                    "date": "2026-07-17T08:30:52.985306Z",
                    "number": "28",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-07-17T08:31:29.601555Z",
                    "number": "29",
                    "summary": "Source created.| CVE status created. (valid)| News created (1)."
                },
                {
                    "date": "2026-07-17T09:24:23.739506Z",
                    "number": "30",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-07-17T10:11:41.911364Z",
                    "number": "31",
                    "summary": "Source connected.| CVE status created. (valid)| EPSS created."
                },
                {
                    "date": "2026-07-17T10:28:04.414307Z",
                    "number": "32",
                    "summary": "References created (1)."
                },
                {
                    "date": "2026-07-17T13:17:58.051283Z",
                    "number": "33",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-07-20T16:17:56.941844Z",
                    "number": "34",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-07-20T16:29:03.283419Z",
                    "number": "35",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-07-21T19:15:31.160287Z",
                    "number": "36",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-07-22T11:33:55.502532Z",
                    "number": "37",
                    "summary": "Source connected.| CVE status created. (valid)| News created (1)."
                },
                {
                    "date": "2026-07-22T11:34:06.181206Z",
                    "number": "38",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-07-24T14:28:53.600851Z",
                    "number": "39",
                    "summary": "EPSS updated."
                },
                {
                    "date": "2026-07-24T14:28:59.732741Z",
                    "number": "40",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-07-27T08:29:53.758080Z",
                    "number": "41",
                    "summary": "Source connected.| CVE status created. (valid)| News created (1)."
                },
                {
                    "date": "2026-07-27T08:30:02.022574Z",
                    "number": "42",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-07-28T15:30:24.507794Z",
                    "number": "43",
                    "summary": "EPSS updated."
                },
                {
                    "date": "2026-07-28T15:30:26.972296Z",
                    "number": "44",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-07-30T16:21:16.860883Z",
                    "number": "45",
                    "summary": "EPSS updated."
                },
                {
                    "date": "2026-07-30T16:21:20.363452Z",
                    "number": "46",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-08-06T19:05:32.364870Z",
                    "number": "47",
                    "summary": "Source connected.| CVE status created. (valid)| News created (1)."
                },
                {
                    "date": "2026-08-06T19:05:37.691951Z",
                    "number": "48",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-08-07T13:19:16.664850Z",
                    "number": "49",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-08-08T09:30:15.110941Z",
                    "number": "50",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-08-12T09:07:57.845922Z",
                    "number": "51",
                    "summary": "References created (1)."
                },
                {
                    "date": "2026-08-12T09:08:01.817023Z",
                    "number": "52",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-08-12T15:15:36.843342Z",
                    "number": "53",
                    "summary": "Source connected.| CVE status created. (valid)| EPSS created."
                },
                {
                    "date": "2026-08-12T15:30:41.743163Z",
                    "number": "54",
                    "summary": "Source connected.| CVE status created. (valid)| News created (1)."
                },
                {
                    "date": "2026-08-24T15:13:37.569381Z",
                    "number": "55",
                    "summary": "EPSS updated."
                },
                {
                    "date": "2026-08-24T15:17:22.564727Z",
                    "number": "56",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-08-26T15:05:19.062172Z",
                    "number": "57",
                    "summary": "Source connected.| CVE status created. (valid)| News created (1)."
                },
                {
                    "date": "2026-08-26T15:05:28.749493Z",
                    "number": "58",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-09-02T10:27:29.091123Z",
                    "number": "59",
                    "summary": "EPSS updated."
                },
                {
                    "date": "2026-09-03T00:28:43.721672Z",
                    "number": "60",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-09-03T14:17:07.296346Z",
                    "number": "61",
                    "summary": "EPSS updated."
                },
                {
                    "date": "2026-09-03T18:41:33.691293Z",
                    "number": "62",
                    "summary": "EPSS updated."
                },
                {
                    "date": "2026-09-04T15:25:45.200460Z",
                    "number": "63",
                    "summary": "EPSS updated."
                },
                {
                    "date": "2026-09-04T15:25:46.384766Z",
                    "number": "64",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-09-05T15:25:06.277144Z",
                    "number": "65",
                    "summary": "EPSS updated."
                },
                {
                    "date": "2026-09-06T15:25:35.814790Z",
                    "number": "66",
                    "summary": "EPSS updated."
                }
            ],
            "status": "interim",
            "version": "66"
        }
    },
    "product_tree": {
        "branches": [
            {
                "branches": [
                    {
                        "branches": [
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/2016",
                                "product": {
                                    "name": "vers:unknown/2016",
                                    "product_id": "CSAFPID-2796",
                                    "product_identification_helper": {
                                        "cpe": "cpe:/a:microsoft:excel:2016"
                                    }
                                }
                            }
                        ],
                        "category": "product_name",
                        "name": "Excel"
                    },
                    {
                        "branches": [
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/unknown",
                                "product": {
                                    "name": "vers:unknown/unknown",
                                    "product_id": "CSAFPID-1430029",
                                    "product_identification_helper": {
                                        "cpe": "cpe:/a:microsoft:365_apps:-"
                                    }
                                }
                            }
                        ],
                        "category": "product_name",
                        "name": "Microsoft 365 Apps"
                    },
                    {
                        "branches": [
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/unknown",
                                "product": {
                                    "name": "vers:unknown/unknown",
                                    "product_id": "CSAFPID-1776528",
                                    "product_identification_helper": {
                                        "cpe": "cpe:/a:microsoft:office_online_server:-"
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                                }
                            }
                        ],
                        "category": "product_name",
                        "name": "Microsoft Office Online Server"
                    },
                    {
                        "branches": [
                            {
                                "branches": [
                                    {
                                        "category": "product_version_range",
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                                        "product": {
                                            "name": "vers:microsoft/*",
                                            "product_id": "CSAFPID-5137201",
                                            "product_identification_helper": {
                                                "cpe": "cpe:2.3:a:microsoft:sharepoint_server_2016:*:*:*:*:enterprise:*:*:*"
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                            },
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                                    {
                                        "category": "product_version_range",
                                        "name": "vers:microsoft/*",
                                        "product": {
                                            "name": "vers:microsoft/*",
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                                "name": "Microsoft SharePoint Server 2019"
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                            {
                                "branches": [
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                                        "category": "product_version_range",
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                                "product": {
                                    "name": "vers:unknown/unknown",
                                    "product_id": "CSAFPID-1533360"
                                }
                            }
                        ],
                        "category": "product_name",
                        "name": "SharePoint Server"
                    },
                    {
                        "branches": [
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/2016",
                                "product": {
                                    "name": "vers:unknown/2016",
                                    "product_id": "CSAFPID-62652",
                                    "product_identification_helper": {
                                        "cpe": "cpe:/a:microsoft:word:2016"
                                    }
                                }
                            }
                        ],
                        "category": "product_name",
                        "name": "Word"
                    },
                    {
                        "branches": [
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/2016",
                                "product": {
                                    "name": "vers:unknown/2016",
                                    "product_id": "CSAFPID-2140507",
                                    "product_identification_helper": {
                                        "cpe": "cpe:2.3:a:microsoft:sharepoint_server:2016:*:*:*:enterprise:*:*:*"
                                    }
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/2019",
                                "product": {
                                    "name": "vers:unknown/2019",
                                    "product_id": "CSAFPID-2098929",
                                    "product_identification_helper": {
                                        "cpe": "cpe:2.3:a:microsoft:sharepoint_server:2019:*:*:*:*:*:*:*"
                                    }
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/<16.0.19725.20434",
                                "product": {
                                    "name": "vers:unknown/<16.0.19725.20434",
                                    "product_id": "CSAFPID-8811363",
                                    "product_identification_helper": {
                                        "cpe": "cpe:2.3:a:microsoft:sharepoint_server:*:*:*:*:subscription:*:*:*"
                                    }
                                }
                            }
                        ],
                        "category": "product_name",
                        "name": "sharepoint_server"
                    }
                ],
                "category": "vendor",
                "name": "Microsoft"
            }
        ]
    },
    "vulnerabilities": [
        {
            "cve": "CVE-2026-56164",
            "cwe": {
                "id": "CWE-306",
                "name": "Missing Authentication for Critical Function"
            },
            "notes": [
                {
                    "category": "description",
                    "text": "Missing authentication for critical function in Microsoft Office SharePoint allows an unauthorized attacker to elevate privileges over a network.",
                    "title": "nvd - https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-56164"
                },
                {
                    "category": "description",
                    "text": "Missing authentication for critical function in Microsoft Office SharePoint allows an unauthorized attacker to elevate privileges over a network.",
                    "title": "cveprojectv5 - https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/56xxx/CVE-2026-56164.json"
                },
                {
                    "category": "description",
                    "text": "<p>Missing authentication for critical function in Microsoft Office SharePoint allows an unauthorized attacker to elevate privileges over a network.</p>\n",
                    "title": "microsoft - https://api.msrc.microsoft.com/cvrf/v3.0/cvrf/2026-Jul"
                },
                {
                    "category": "description",
                    "text": "Microsoft SharePoint contains a missing authentication for critical function vulnerability that allows an unauthorized attacker to elevate privileges over a network.\nApply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.",
                    "title": "cisagov - https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json"
                },
                {
                    "category": "description",
                    "text": "Missing authentication for critical function in Microsoft Office SharePoint allows an unauthorized attacker to elevate privileges over a network.",
                    "title": "euvdkev - https://euvdservices.enisa.europa.eu/api/search?fromScore=0&toScore=10&fromEpss=0&toEpss=100&exploited=true&page=0&size=50"
                },
                {
                    "category": "other",
                    "text": "0.26636",
                    "title": "EPSS"
                },
                {
                    "category": "other",
                    "text": "8.1",
                    "title": "NCSC Score"
                },
                {
                    "category": "other",
                    "text": "Is related to (a version of) an uncommon product, There is cvss data available from a private source, There is product data available from a private source, VENDOR FIX as product remediation category, There is product data available from source Certbundde, There is news data available from source Bleepingcomputer",
                    "title": "NCSC Score top increasing factors"
                }
            ],
            "product_status": {
                "known_affected": [
                    "CSAFPID-8808587",
                    "CSAFPID-8808588",
                    "CSAFPID-8808589",
                    "CSAFPID-1429583",
                    "CSAFPID-5137201",
                    "CSAFPID-5137202",
                    "CSAFPID-1533360",
                    "CSAFPID-2098929",
                    "CSAFPID-2140507",
                    "CSAFPID-8811363",
                    "CSAFPID-1430027",
                    "CSAFPID-8023664",
                    "CSAFPID-8023665",
                    "CSAFPID-2796",
                    "CSAFPID-62652",
                    "CSAFPID-1189241",
                    "CSAFPID-1189242",
                    "CSAFPID-1189244",
                    "CSAFPID-1305162",
                    "CSAFPID-1305163",
                    "CSAFPID-1305165",
                    "CSAFPID-1430029",
                    "CSAFPID-1776524",
                    "CSAFPID-1776528",
                    "CSAFPID-5467987",
                    "CSAFPID-5467990",
                    "CSAFPID-6042664",
                    "CSAFPID-8263373"
                ]
            },
            "references": [
                {
                    "category": "external",
                    "summary": "Source - bleepingcomputer",
                    "url": "https://www.bleepingcomputer.com/news/security/hackers-target-microsoft-sharepoint-rce-chain-with-poc-exploit/"
                },
                {
                    "category": "external",
                    "summary": "Source - first",
                    "url": "https://api.first.org/data/v1/epss"
                },
                {
                    "category": "external",
                    "summary": "Source - bleepingcomputer",
                    "url": "https://www.bleepingcomputer.com/news/microsoft/microsoft-july-2026-patch-tuesday-fixes-massive-570-flaws-3-zero-days/"
                },
                {
                    "category": "external",
                    "summary": "Source - nvd",
                    "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-56164"
                },
                {
                    "category": "external",
                    "summary": "Source - cisagov",
                    "url": "https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json"
                },
                {
                    "category": "external",
                    "summary": "Source - cveprojectv5",
                    "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/56xxx/CVE-2026-56164.json"
                },
                {
                    "category": "external",
                    "summary": "Source - microsoft",
                    "url": "https://api.msrc.microsoft.com/cvrf/v3.0/cvrf/2026-Jul"
                },
                {
                    "category": "external",
                    "summary": "Source - ncscclear",
                    "url": "https://advisories.ncsc.nl/advisory?id=NCSC-2026-0237"
                },
                {
                    "category": "external",
                    "summary": "Source - euvdkev",
                    "url": "https://euvdservices.enisa.europa.eu/api/search?fromScore=0&toScore=10&fromEpss=0&toEpss=100&exploited=true&page=0&size=50"
                },
                {
                    "category": "external",
                    "summary": "Source - certbundde",
                    "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2317.json"
                },
                {
                    "category": "external",
                    "summary": "Source - securityweek",
                    "url": "https://www.securityweek.com/microsoft-patches-record-622-vulnerabilities-including-two-exploited-zero-days/"
                },
                {
                    "category": "external",
                    "summary": "Source - hkcert",
                    "url": "https://www.hkcert.org/security-bulletin/microsoft-monthly-security-update-july-2026"
                },
                {
                    "category": "external",
                    "summary": "Source - securitynl",
                    "url": "https://www.security.nl/posting/945019/Microsoft+komt+met+grootste+Patch+Tuesday+ooit%3A+622+kwetsbaarheden+gefixt?channel=rss"
                },
                {
                    "category": "external",
                    "summary": "Source - securitynl",
                    "url": "https://www.security.nl/posting/945016/Microsoft+SharePoint-servers+aangevallen%2C+VS+roept+op+tot+extra+beveiliging?channel=rss"
                },
                {
                    "category": "external",
                    "summary": "Source - bleepingcomputer",
                    "url": "https://www.bleepingcomputer.com/news/security/cisa-warns-admins-to-patch-actively-exploited-sharepoint-flaws/"
                },
                {
                    "category": "external",
                    "summary": "Source - securityweek",
                    "url": "https://www.securityweek.com/fresh-sharepoint-vulnerability-exploited-soon-after-disclosure/"
                },
                {
                    "category": "external",
                    "summary": "Source - securitynl",
                    "url": "https://www.security.nl/posting/945379/Microsoft+meldt+alsnog+actief+misbruik+van+kritiek+SharePoint-lek?channel=rss"
                },
                {
                    "category": "external",
                    "summary": "Source - securityweek",
                    "url": "https://www.securityweek.com/fourth-sharepoint-vulnerability-exploited-in-past-months-wave-of-attacks/"
                },
                {
                    "category": "external",
                    "summary": "Source - securitynl",
                    "url": "https://www.security.nl/posting/946816/Honderden+Microsoft+SharePoint-servers+bevatten+actief+misbruikte+lekken?channel=rss"
                },
                {
                    "category": "external",
                    "summary": "Source - bleepingcomputer",
                    "url": "https://www.bleepingcomputer.com/news/security/swiss-government-sharepoint-breach-compromised-200-accounts/"
                },
                {
                    "category": "external",
                    "summary": "Source - securityweek",
                    "url": "https://www.securityweek.com/sharepoint-vulnerability-exploited-shortly-after-poc-release/"
                },
                {
                    "category": "external",
                    "summary": "Source - ncscclear",
                    "url": "https://vulnerabilities.ncsc.nl/manual/CVE-2026-56164"
                },
                {
                    "category": "external",
                    "summary": "News - bleepingcomputer",
                    "url": "https://www.bleepingcomputer.com/news/microsoft/microsoft-july-2026-patch-tuesday-fixes-massive-570-flaws-3-zero-days/"
                },
                {
                    "category": "external",
                    "summary": "News - securityweek",
                    "url": "https://www.securityweek.com/microsoft-patches-record-622-vulnerabilities-including-two-exploited-zero-days/"
                },
                {
                    "category": "external",
                    "summary": "News - securitynl",
                    "url": "https://www.security.nl/posting/945019/Microsoft+komt+met+grootste+Patch+Tuesday+ooit%3A+622+kwetsbaarheden+gefixt?channel=rss"
                },
                {
                    "category": "external",
                    "summary": "News - securitynl",
                    "url": "https://www.security.nl/posting/945016/Microsoft+SharePoint-servers+aangevallen%2C+VS+roept+op+tot+extra+beveiliging?channel=rss"
                },
                {
                    "category": "external",
                    "summary": "News - bleepingcomputer",
                    "url": "https://www.bleepingcomputer.com/news/security/cisa-warns-admins-to-patch-actively-exploited-sharepoint-flaws/"
                },
                {
                    "category": "external",
                    "summary": "News - securityweek",
                    "url": "https://www.securityweek.com/fresh-sharepoint-vulnerability-exploited-soon-after-disclosure/"
                },
                {
                    "category": "external",
                    "summary": "News - securitynl",
                    "url": "https://www.security.nl/posting/945379/Microsoft+meldt+alsnog+actief+misbruik+van+kritiek+SharePoint-lek?channel=rss"
                },
                {
                    "category": "external",
                    "summary": "News - securityweek",
                    "url": "https://www.securityweek.com/fourth-sharepoint-vulnerability-exploited-in-past-months-wave-of-attacks/"
                },
                {
                    "category": "external",
                    "summary": "News - securitynl",
                    "url": "https://www.security.nl/posting/946816/Honderden+Microsoft+SharePoint-servers+bevatten+actief+misbruikte+lekken?channel=rss"
                },
                {
                    "category": "external",
                    "summary": "News - bleepingcomputer",
                    "url": "https://www.bleepingcomputer.com/news/security/swiss-government-sharepoint-breach-compromised-200-accounts/"
                },
                {
                    "category": "external",
                    "summary": "News - securityweek",
                    "url": "https://www.securityweek.com/sharepoint-vulnerability-exploited-shortly-after-poc-release/"
                },
                {
                    "category": "external",
                    "summary": "News - bleepingcomputer",
                    "url": "https://www.bleepingcomputer.com/news/security/hackers-target-microsoft-sharepoint-rce-chain-with-poc-exploit/"
                },
                {
                    "category": "external",
                    "summary": "Reference - cisagov",
                    "url": "https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2026-56164"
                },
                {
                    "category": "external",
                    "summary": "Reference - cisagov",
                    "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56164"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde; cveprojectv5; euvdkev; nvd",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56164"
                },
                {
                    "category": "external",
                    "summary": "Reference - cveprojectv5; nvd",
                    "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-56164"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47290"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47642"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-48580"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50301"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50314"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50387"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50408"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50467"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50522"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50665"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50675"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50678"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54108"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54131"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54988"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55016"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55017"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55018"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55019"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55020"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55021"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55022"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55023"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55024"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55025"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55026"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55027"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55028"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55029"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55030"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55031"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55032"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55033"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55034"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55035"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55036"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55037"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55038"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55039"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55040"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55041"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55042"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55043"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55044"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55045"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55046"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55047"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55048"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55049"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55050"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55051"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55052"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55053"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55054"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55055"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55056"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55057"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55058"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55120"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55121"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55122"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55123"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55124"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55125"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55126"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55127"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55128"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55129"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55130"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55131"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55132"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55133"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55134"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55135"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55136"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55137"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55138"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55139"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55140"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55141"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55142"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55898"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55899"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55947"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55948"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55949"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56156"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56157"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56192"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56193"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56195"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58277"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58618"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58644"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2317.json"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2317"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://www.rapid7.com/blog/post/ra-microsoft-sharepoint-jwt-token-authentication-bypass-cve-2026-55040/"
                }
            ],
            "remediations": [
                {
                    "category": "vendor_fix",
                    "details": "5002882",
                    "product_ids": [
                        "CSAFPID-1429583"
                    ],
                    "url": "https://www.microsoft.com/en-us/download/details.aspx?id=108730"
                },
                {
                    "category": "vendor_fix",
                    "details": "5002891",
                    "product_ids": [
                        "CSAFPID-5137201"
                    ],
                    "url": "https://www.microsoft.com/en-us/download/details.aspx?id=108723"
                },
                {
                    "category": "vendor_fix",
                    "details": "5002883",
                    "product_ids": [
                        "CSAFPID-5137202"
                    ],
                    "url": "https://www.microsoft.com/en-us/download/details.aspx?id=108726"
                }
            ],
            "scores": [
                {
                    "cvss_v3": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:F/RL:O/RC:C",
                        "baseScore": 5.3,
                        "baseSeverity": "MEDIUM"
                    },
                    "products": [
                        "CSAFPID-1189241",
                        "CSAFPID-1189242",
                        "CSAFPID-1189244",
                        "CSAFPID-1305162",
                        "CSAFPID-1305163",
                        "CSAFPID-1305165",
                        "CSAFPID-1429583",
                        "CSAFPID-1430027",
                        "CSAFPID-1430029",
                        "CSAFPID-1533360",
                        "CSAFPID-1776524",
                        "CSAFPID-1776528",
                        "CSAFPID-2098929",
                        "CSAFPID-2140507",
                        "CSAFPID-2796",
                        "CSAFPID-5137201",
                        "CSAFPID-5137202",
                        "CSAFPID-5467987",
                        "CSAFPID-5467990",
                        "CSAFPID-6042664",
                        "CSAFPID-62652",
                        "CSAFPID-8023664",
                        "CSAFPID-8023665",
                        "CSAFPID-8263373",
                        "CSAFPID-8808587",
                        "CSAFPID-8808588",
                        "CSAFPID-8808589",
                        "CSAFPID-8811363"
                    ]
                }
            ],
            "threats": [
                {
                    "category": "exploit_status",
                    "details": "Publicly Disclosed:No;Exploited:Yes;Latest Software Release:Exploitation Detected",
                    "product_ids": [
                        "CSAFPID-1429583",
                        "CSAFPID-5137201",
                        "CSAFPID-5137202"
                    ]
                },
                {
                    "category": "impact",
                    "details": "Elevation of Privilege",
                    "product_ids": [
                        "CSAFPID-1429583",
                        "CSAFPID-5137201",
                        "CSAFPID-5137202"
                    ]
                },
                {
                    "category": "exploit_status",
                    "details": "exploited"
                }
            ],
            "title": "CVE-2026-56164"
        }
    ]
}