{
    "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-2026-10027",
        "tracking": {
            "current_release_date": "2026-10-17T10:02:46.606938Z",
            "generator": {
                "date": "2026-02-17T15:00:00Z",
                "engine": {
                    "name": "V.E.L.M.A",
                    "version": "1.7"
                }
            },
            "id": "CVE-2026-10027",
            "initial_release_date": "2026-09-16T12:07:11.261784Z",
            "revision_history": [
                {
                    "date": "2026-09-16T12:07:11.261784Z",
                    "number": "1",
                    "summary": "CVE created.| Source created.| CVE status created. (valid)| Products connected (5).| References created (21)."
                },
                {
                    "date": "2026-09-16T12:07:13.602078Z",
                    "number": "2",
                    "summary": "NCSC Score created."
                },
                {
                    "date": "2026-09-18T16:27:00.652210Z",
                    "number": "3",
                    "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (1).| CWES updated (1)."
                },
                {
                    "date": "2026-09-18T16:27:12.505153Z",
                    "number": "4",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-09-18T16:39:43.561672Z",
                    "number": "5",
                    "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (7).| Product Identifiers created (77).| References created (1).| CWES updated (1)."
                },
                {
                    "date": "2026-09-18T16:39:45.506687Z",
                    "number": "6",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-09-19T04:38:57.911270Z",
                    "number": "7",
                    "summary": "Unknown change."
                },
                {
                    "date": "2026-09-19T15:14:58.966799Z",
                    "number": "8",
                    "summary": "EPSS created.| Unknown change."
                },
                {
                    "date": "2026-09-19T15:15:02.679678Z",
                    "number": "9",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-09-23T14:59:06.804441Z",
                    "number": "10",
                    "summary": "Products connected (1).| Product Identifiers created (1).| References created (1)."
                },
                {
                    "date": "2026-09-23T19:26:06.096796Z",
                    "number": "11",
                    "summary": "Products connected (7).| Product Identifiers created (7)."
                },
                {
                    "date": "2026-09-23T19:26:16.856616Z",
                    "number": "12",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-09-29T16:13:27.512269Z",
                    "number": "13",
                    "summary": "EPSS created.| Unknown change."
                },
                {
                    "date": "2026-10-16T00:27:19.504803Z",
                    "number": "14",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-10-17T10:02:29.973786Z",
                    "number": "15",
                    "summary": "Products created (10).| Products removed (10)."
                }
            ],
            "status": "interim",
            "version": "15"
        }
    },
    "product_tree": {
        "branches": [
            {
                "branches": [
                    {
                        "branches": [
                            {
                                "category": "product_version_range",
                                "name": "vers:semver/9.1.0.0|<=9.1.0.37lts",
                                "product": {
                                    "name": "vers:semver/9.1.0.0|<=9.1.0.37lts",
                                    "product_id": "CSAFPID-9307517",
                                    "product_identification_helper": {
                                        "cpe": "cpe:2.3:a:ibm:mq:9.4.0.0:*:*:*:*:*:*:*"
                                    }
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:semver/9.2.0.0|<=9.2.0.43lts",
                                "product": {
                                    "name": "vers:semver/9.2.0.0|<=9.2.0.43lts",
                                    "product_id": "CSAFPID-9307518",
                                    "product_identification_helper": {
                                        "cpe": "cpe:2.3:a:ibm:mq:9.4.0.0:*:*:*:*:*:*:*"
                                    }
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:semver/9.3.0.0|<=9.3.0.41lts",
                                "product": {
                                    "name": "vers:semver/9.3.0.0|<=9.3.0.41lts",
                                    "product_id": "CSAFPID-9307519",
                                    "product_identification_helper": {
                                        "cpe": "cpe:2.3:a:ibm:mq:9.4.0.0:*:*:*:*:*:*:*"
                                    }
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:semver/9.3.0.0|<=9.3.5.1cd",
                                "product": {
                                    "name": "vers:semver/9.3.0.0|<=9.3.5.1cd",
                                    "product_id": "CSAFPID-9307520",
                                    "product_identification_helper": {
                                        "cpe": "cpe:2.3:a:ibm:mq:9.4.0.0:*:*:*:*:*:*:*"
                                    }
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:semver/9.4.0.0|<=9.4.0.25lts",
                                "product": {
                                    "name": "vers:semver/9.4.0.0|<=9.4.0.25lts",
                                    "product_id": "CSAFPID-9307521",
                                    "product_identification_helper": {
                                        "cpe": "cpe:2.3:a:ibm:mq:9.4.0.0:*:*:*:*:*:*:*"
                                    }
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:semver/9.4.0.0|<=9.4.5.1cd",
                                "product": {
                                    "name": "vers:semver/9.4.0.0|<=9.4.5.1cd",
                                    "product_id": "CSAFPID-9307522",
                                    "product_identification_helper": {
                                        "cpe": "cpe:2.3:a:ibm:mq:9.4.0.0:*:*:*:*:*:*:*"
                                    }
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/10.0.0.0",
                                "product": {
                                    "name": "vers:unknown/10.0.0.0",
                                    "product_id": "CSAFPID-9307523",
                                    "product_identification_helper": {
                                        "cpe": "cpe:2.3:a:ibm:mq:9.4.0.0:*:*:*:*:*:*:*"
                                    }
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/9.1.0.0",
                                "product": {
                                    "name": "vers:unknown/9.1.0.0",
                                    "product_id": "CSAFPID-184082",
                                    "product_identification_helper": {
                                        "cpe": "cpe:2.3:a:ibm:mq:9.1.0.0:*:*:*:*:*:*:*"
                                    }
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/9.1.0.37",
                                "product": {
                                    "name": "vers:unknown/9.1.0.37",
                                    "product_id": "CSAFPID-9443051",
                                    "product_identification_helper": {
                                        "cpe": "cpe:2.3:a:ibm:mq:9.1.0.37:*:*:*:*:*:*:*"
                                    }
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/9.2.0.0",
                                "product": {
                                    "name": "vers:unknown/9.2.0.0",
                                    "product_id": "CSAFPID-599086",
                                    "product_identification_helper": {
                                        "cpe": "cpe:2.3:a:ibm:mq:9.2.0.0:*:*:*:*:*:*:*"
                                    }
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/9.2.0.43",
                                "product": {
                                    "name": "vers:unknown/9.2.0.43",
                                    "product_id": "CSAFPID-9443052",
                                    "product_identification_helper": {
                                        "cpe": "cpe:2.3:a:ibm:mq:9.2.0.43:*:*:*:*:*:*:*"
                                    }
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/9.3.0.0",
                                "product": {
                                    "name": "vers:unknown/9.3.0.0",
                                    "product_id": "CSAFPID-337434",
                                    "product_identification_helper": {
                                        "cpe": "cpe:2.3:a:ibm:mq:9.3.0.0:*:*:*:*:*:*:*"
                                    }
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/9.3.0.41",
                                "product": {
                                    "name": "vers:unknown/9.3.0.41",
                                    "product_id": "CSAFPID-9443053",
                                    "product_identification_helper": {
                                        "cpe": "cpe:2.3:a:ibm:mq:9.3.0.41:*:*:*:*:*:*:*"
                                    }
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/9.3.5.1",
                                "product": {
                                    "name": "vers:unknown/9.3.5.1",
                                    "product_id": "CSAFPID-1042888",
                                    "product_identification_helper": {
                                        "cpe": "cpe:2.3:a:ibm:mq:9.3.5.1:*:*:*:*:*:*:*"
                                    }
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/9.4.0.0",
                                "product": {
                                    "name": "vers:unknown/9.4.0.0",
                                    "product_id": "CSAFPID-2972468",
                                    "product_identification_helper": {
                                        "cpe": "cpe:2.3:a:ibm:mq:9.4.0.0:*:*:*:*:*:*:*"
                                    }
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/9.4.0.25",
                                "product": {
                                    "name": "vers:unknown/9.4.0.25",
                                    "product_id": "CSAFPID-9443054",
                                    "product_identification_helper": {
                                        "cpe": "cpe:2.3:a:ibm:mq:9.4.0.25:*:*:*:*:*:*:*"
                                    }
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/9.4.5.1",
                                "product": {
                                    "name": "vers:unknown/9.4.5.1",
                                    "product_id": "CSAFPID-9443055",
                                    "product_identification_helper": {
                                        "cpe": "cpe:2.3:a:ibm:mq:9.4.5.1:*:*:*:*:*:*:*"
                                    }
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/<10.0.0.5",
                                "product": {
                                    "name": "vers:unknown/<10.0.0.5",
                                    "product_id": "CSAFPID-9318698"
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/<9.1.0.38",
                                "product": {
                                    "name": "vers:unknown/<9.1.0.38",
                                    "product_id": "CSAFPID-9318700"
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/<9.2.0.44",
                                "product": {
                                    "name": "vers:unknown/<9.2.0.44",
                                    "product_id": "CSAFPID-9318702"
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/<9.3.0.42",
                                "product": {
                                    "name": "vers:unknown/<9.3.0.42",
                                    "product_id": "CSAFPID-9318701"
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/<9.4.0.26",
                                "product": {
                                    "name": "vers:unknown/<9.4.0.26",
                                    "product_id": "CSAFPID-9318699"
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/>=9.1.0.0|<=9.1.0.37",
                                "product": {
                                    "name": "vers:unknown/>=9.1.0.0|<=9.1.0.37",
                                    "product_id": "CSAFPID-9382988",
                                    "product_identification_helper": {
                                        "cpe": "cpe:2.3:a:ibm:mq:*:*:*:*:lts:*:*:*"
                                    }
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/>=9.2.0.0|<=9.2.0.43",
                                "product": {
                                    "name": "vers:unknown/>=9.2.0.0|<=9.2.0.43",
                                    "product_id": "CSAFPID-9382989",
                                    "product_identification_helper": {
                                        "cpe": "cpe:2.3:a:ibm:mq:*:*:*:*:lts:*:*:*"
                                    }
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/>=9.3.0.0|<=9.3.0.41",
                                "product": {
                                    "name": "vers:unknown/>=9.3.0.0|<=9.3.0.41",
                                    "product_id": "CSAFPID-9382990",
                                    "product_identification_helper": {
                                        "cpe": "cpe:2.3:a:ibm:mq:*:*:*:*:lts:*:*:*"
                                    }
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/>=9.3.0.0|<=9.3.5.1",
                                "product": {
                                    "name": "vers:unknown/>=9.3.0.0|<=9.3.5.1",
                                    "product_id": "CSAFPID-5287051",
                                    "product_identification_helper": {
                                        "cpe": "cpe:2.3:a:ibm:mq:*:*:*:*:continuous_delivery:*:*:*"
                                    }
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/>=9.4.0.0|<=9.4.0.25",
                                "product": {
                                    "name": "vers:unknown/>=9.4.0.0|<=9.4.0.25",
                                    "product_id": "CSAFPID-9382991",
                                    "product_identification_helper": {
                                        "cpe": "cpe:2.3:a:ibm:mq:*:*:*:*:lts:*:*:*"
                                    }
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/>=9.4.0.0|<=9.4.5.1",
                                "product": {
                                    "name": "vers:unknown/>=9.4.0.0|<=9.4.5.1",
                                    "product_id": "CSAFPID-9382992",
                                    "product_identification_helper": {
                                        "cpe": "cpe:2.3:a:ibm:mq:*:*:*:*:continuous_delivery:*:*:*"
                                    }
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/operator",
                                "product": {
                                    "name": "vers:unknown/operator",
                                    "product_id": "CSAFPID-149529",
                                    "product_identification_helper": {
                                        "cpe": "cpe:/a:ibm:mq:operator"
                                    }
                                }
                            }
                        ],
                        "category": "product_name",
                        "name": "MQ"
                    }
                ],
                "category": "vendor",
                "name": "IBM"
            }
        ]
    },
    "vulnerabilities": [
        {
            "cve": "CVE-2026-10027",
            "cwe": {
                "id": "CWE-787",
                "name": "Out-of-bounds Write"
            },
            "notes": [
                {
                    "category": "description",
                    "text": "IBM MQ could allow a remote attacker to cause a denial of service or execute arbitrary code due to a buffer overflow when processing malformed compressed data on channels configured with compression enabled.",
                    "title": "nvd - https://nvd.nist.gov/vuln/detail/CVE-2026-10027"
                },
                {
                    "category": "description",
                    "text": "IBM MQ could allow a remote attacker to cause a denial of service or execute arbitrary code due to a buffer overflow when processing malformed compressed data on channels configured with compression enabled.",
                    "title": "cveprojectv5 - https://www.cve.org/CVERecord?id=CVE-2026-10027"
                },
                {
                    "category": "other",
                    "text": "0.00381",
                    "title": "EPSS"
                },
                {
                    "category": "other",
                    "text": "5.7",
                    "title": "NCSC Score"
                },
                {
                    "category": "other",
                    "text": "There is product data available from source Certbundde",
                    "title": "NCSC Score top increasing factors"
                },
                {
                    "category": "other",
                    "text": "Is related to (a version of) an uncommon product",
                    "title": "NCSC Score top decreasing factors"
                }
            ],
            "product_status": {
                "known_affected": [
                    "CSAFPID-9318698",
                    "CSAFPID-9318699",
                    "CSAFPID-9318700",
                    "CSAFPID-9318701",
                    "CSAFPID-9318702",
                    "CSAFPID-149529",
                    "CSAFPID-5287051",
                    "CSAFPID-9307523",
                    "CSAFPID-9382988",
                    "CSAFPID-9382989",
                    "CSAFPID-9382990",
                    "CSAFPID-9382991",
                    "CSAFPID-9382992",
                    "CSAFPID-9307517",
                    "CSAFPID-9307518",
                    "CSAFPID-9307519",
                    "CSAFPID-9307520",
                    "CSAFPID-9307521",
                    "CSAFPID-9307522"
                ]
            },
            "references": [
                {
                    "category": "external",
                    "summary": "Source - ncscclear",
                    "url": "https://vulnerabilities.ncsc.nl/manual/CVE-2026-10027"
                },
                {
                    "category": "external",
                    "summary": "Source - certbundde",
                    "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-3409.json"
                },
                {
                    "category": "external",
                    "summary": "Source - nvd",
                    "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-10027"
                },
                {
                    "category": "external",
                    "summary": "Source - first",
                    "url": "https://api.first.org/data/v1/epss"
                },
                {
                    "category": "external",
                    "summary": "Source - cveprojectv5",
                    "url": "https://www.cve.org/CVERecord?id=CVE-2026-10027"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://www.ibm.com/support/pages/node/7284943"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://www.ibm.com/support/pages/node/7284944"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-3409.json"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-3409"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://www.ibm.com/support/pages/node/7284541"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://www.ibm.com/support/pages/node/7284543"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://www.ibm.com/support/pages/node/7284544"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde; cveprojectv5; nvd",
                    "url": "https://www.ibm.com/support/pages/node/7284893"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://www.ibm.com/support/pages/node/7284894"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://www.ibm.com/support/pages/node/7284898"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://www.ibm.com/support/pages/node/7284899"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://www.ibm.com/support/pages/node/7284905"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://www.ibm.com/support/pages/node/7284908"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://www.ibm.com/support/pages/node/7284911"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://www.ibm.com/support/pages/node/7284912"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://www.ibm.com/support/pages/node/7284913"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://www.ibm.com/support/pages/node/7284933"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://www.ibm.com/support/pages/node/7284936"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://www.ibm.com/support/pages/node/7284939"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://www.ibm.com/support/pages/node/7284941"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://www.ibm.com/support/pages/node/7284942"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://www.ibm.com/support/pages/node/7289064"
                }
            ],
            "scores": [
                {
                    "cvss_v3": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
                        "baseScore": 8.1,
                        "baseSeverity": "HIGH"
                    },
                    "products": [
                        "CSAFPID-149529",
                        "CSAFPID-5287051",
                        "CSAFPID-9307517",
                        "CSAFPID-9307518",
                        "CSAFPID-9307519",
                        "CSAFPID-9307520",
                        "CSAFPID-9307521",
                        "CSAFPID-9307522",
                        "CSAFPID-9307523",
                        "CSAFPID-9318698",
                        "CSAFPID-9318699",
                        "CSAFPID-9318700",
                        "CSAFPID-9318701",
                        "CSAFPID-9318702",
                        "CSAFPID-9382988",
                        "CSAFPID-9382989",
                        "CSAFPID-9382990",
                        "CSAFPID-9382991",
                        "CSAFPID-9382992"
                    ]
                }
            ],
            "title": "CVE-2026-10027"
        }
    ]
}