{
    "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-2025-62439",
        "tracking": {
            "current_release_date": "2026-06-02T18:01:46.189399Z",
            "generator": {
                "date": "2026-02-17T15:00:00Z",
                "engine": {
                    "name": "V.E.L.M.A",
                    "version": "1.7"
                }
            },
            "id": "CVE-2025-62439",
            "initial_release_date": "2026-02-10T16:25:13.112926Z",
            "revision_history": [
                {
                    "date": "2026-02-10T16:25:13.112926Z",
                    "number": "1",
                    "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (1).| CWES updated (1)."
                },
                {
                    "date": "2026-02-10T16:25:17.566178Z",
                    "number": "2",
                    "summary": "NCSC Score created."
                },
                {
                    "date": "2026-02-10T16:39:32.652083Z",
                    "number": "3",
                    "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (4).| Product Identifiers created (196).| References created (1).| CWES updated (1)."
                },
                {
                    "date": "2026-02-10T16:39:40.620359Z",
                    "number": "4",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-02-10T18:12:32.525850Z",
                    "number": "5",
                    "summary": "Source created.| CVE status created. (valid)| Products created (1).| Products connected (1)."
                },
                {
                    "date": "2026-02-10T18:12:43.279201Z",
                    "number": "6",
                    "summary": "Description created for source.| CVSS created.| Products connected (48).| Products created (1).| Products removed (2)."
                },
                {
                    "date": "2026-02-10T18:12:53.931338Z",
                    "number": "7",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-02-11T11:35:14.282363Z",
                    "number": "8",
                    "summary": "Source connected.| CVE status created. (valid)"
                },
                {
                    "date": "2026-02-11T12:18:41.622175Z",
                    "number": "9",
                    "summary": "Source connected.| CVE status created. (valid)| Products connected (6).| Products created (1).| References created (7)."
                },
                {
                    "date": "2026-02-11T12:18:43.409301Z",
                    "number": "10",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-02-11T14:16:31.566262Z",
                    "number": "11",
                    "summary": "Source created.| CVE status created. (valid)| EPSS created."
                },
                {
                    "date": "2026-02-11T14:16:41.458493Z",
                    "number": "12",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-02-11T15:39:25.050356Z",
                    "number": "13",
                    "summary": "Unknown change."
                },
                {
                    "date": "2026-03-09T12:18:19.841176Z",
                    "number": "14",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-03-10T12:34:02.625569Z",
                    "number": "15",
                    "summary": "Source connected.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (1).| Product Remediations created (1).| References created (2).| CWES updated (1)."
                },
                {
                    "date": "2026-03-10T12:34:04.754813Z",
                    "number": "16",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-03-10T12:44:40.951099Z",
                    "number": "17",
                    "summary": "Source connected.| CVE status created. (valid)"
                },
                {
                    "date": "2026-03-19T20:37:22.751500Z",
                    "number": "18",
                    "summary": "Source connected.| CVE status created. (valid)| EPSS created."
                },
                {
                    "date": "2026-03-19T20:37:24.908602Z",
                    "number": "19",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-03-20T06:51:17.752095Z",
                    "number": "20",
                    "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (1).| CWES updated (1)."
                },
                {
                    "date": "2026-04-10T15:03:26.175657Z",
                    "number": "21",
                    "summary": "Source connected.| CVE status created. (valid)| EPSS created."
                },
                {
                    "date": "2026-04-10T15:03:37.783732Z",
                    "number": "22",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-05-12T12:40:02.316919Z",
                    "number": "23",
                    "summary": "Product Remediations created (1).| Product Remediations removed (1)."
                },
                {
                    "date": "2026-05-12T12:40:07.923099Z",
                    "number": "24",
                    "summary": "NCSC Score updated."
                },
                {
                    "date": "2026-05-12T12:40:43.041174Z",
                    "number": "25",
                    "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (5).| Product Identifiers created (196).| References created (2).| CWES updated (1).| Unknown change."
                },
                {
                    "date": "2026-05-12T13:41:27.551881Z",
                    "number": "26",
                    "summary": "References created (1)."
                },
                {
                    "date": "2026-06-02T18:00:20.799664Z",
                    "number": "27",
                    "summary": "Source connected.| CVE status created. (valid)| EPSS created."
                },
                {
                    "date": "2026-06-02T18:00:23.048051Z",
                    "number": "28",
                    "summary": "NCSC Score updated."
                }
            ],
            "status": "interim",
            "version": "28"
        }
    },
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                                "category": "product_version_range",
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                                "category": "product_version_range",
                                "name": "vers:fortinet/7.0.13",
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                                "category": "product_version_range",
                                "name": "vers:fortinet/7.0.14",
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                                "category": "product_version_range",
                                "name": "vers:fortinet/7.0.16",
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                                "category": "product_version_range",
                                "name": "vers:fortinet/7.0.17",
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                                "category": "product_version_range",
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                                    "product_id": "CSAFPID-5171065"
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                                "category": "product_version_range",
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                            {
                                "category": "product_version_range",
                                "name": "vers:fortinet/7.0.2",
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                                "category": "product_version_range",
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                                    "name": "vers:unknown/<7.4.9",
                                    "product_id": "CSAFPID-5042749"
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/<7.6.1",
                                "product": {
                                    "name": "vers:unknown/<7.6.1",
                                    "product_id": "CSAFPID-2174332"
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/<7.6.2",
                                "product": {
                                    "name": "vers:unknown/<7.6.2",
                                    "product_id": "CSAFPID-2908591"
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/<7.6.5",
                                "product": {
                                    "name": "vers:unknown/<7.6.5",
                                    "product_id": "CSAFPID-5593152"
                                }
                            }
                        ],
                        "category": "product_name",
                        "name": "FortiOS"
                    }
                ],
                "category": "vendor",
                "name": "Fortinet"
            },
            {
                "branches": [
                    {
                        "branches": [
                            {
                                "category": "product_version_range",
                                "name": "vers:all/*",
                                "product": {
                                    "name": "vers:all/*",
                                    "product_id": "CSAFPID-1272525"
                                }
                            },
                            {
                                "category": "product_version_range",
                                "name": "vers:unknown/<*",
                                "product": {
                                    "name": "vers:unknown/<*",
                                    "product_id": "CSAFPID-6030085"
                                }
                            }
                        ],
                        "category": "product_name",
                        "name": "RUGGEDCOM APE1808"
                    }
                ],
                "category": "vendor",
                "name": "Siemens"
            }
        ]
    },
    "vulnerabilities": [
        {
            "cve": "CVE-2025-62439",
            "cwe": {
                "id": "CWE-940",
                "name": "Improper Verification of Source of a Communication Channel"
            },
            "notes": [
                {
                    "category": "description",
                    "text": "An Improper Verification of Source of a Communication Channel vulnerability [CWE-940] vulnerability in Fortinet FortiOS 7.6.0 through 7.6.4, FortiOS 7.4.0 through 7.4.9, FortiOS 7.2 all versions, FortiOS 7.0 all versions may allow an authenticated user with knowledge of FSSO policy configurations to gain unauthorized access to protected network resources via crafted requests.",
                    "title": "nvd - https://nvd.nist.gov/vuln/detail/CVE-2025-62439"
                },
                {
                    "category": "description",
                    "text": "An Improper Verification of Source of a Communication Channel vulnerability [CWE-940] vulnerability in Fortinet FortiOS 7.6.0 through 7.6.4, FortiOS 7.4.0 through 7.4.9, FortiOS 7.2 all versions, FortiOS 7.0 all versions may allow an authenticated user with knowledge of FSSO policy configurations to gain unauthorized access to protected network resources via crafted requests.",
                    "title": "cveprojectv5 - https://www.cve.org/CVERecord?id=CVE-2025-62439"
                },
                {
                    "category": "description",
                    "text": "An Improper Verification of Source of a Communication Channel vulnerability [CWE-940] in FortiOS FSSO Terminal Services Agent may allow an authenticated user with knowledge of FSSO policy configurations to gain unauthorized access to protected network resources via crafted requests.",
                    "title": "fortinet - https://fortiguard.fortinet.com/psirt/FG-IR-25-384"
                },
                {
                    "category": "description",
                    "text": "An Improper Verification of Source of a Communication Channel vulnerability [CWE-940] vulnerability in Fortinet FortiOS 7.6.0 through 7.6.4, FortiOS 7.4.0 through 7.4.9, FortiOS 7.2 all versions, FortiOS 7.0 all versions may allow an authenticated user with knowledge of FSSO policy configurations to gain unauthorized access to protected network resources via crafted requests.",
                    "title": "siemens - https://cert-portal.siemens.com/productcert/csaf/ssa-975644.json"
                },
                {
                    "category": "description",
                    "text": "An Improper Verification of Source of a Communication Channel vulnerability [CWE-940] vulnerability in Fortinet FortiOS 7.6.0 through 7.6.4, FortiOS 7.4.0 through 7.4.9, FortiOS 7.2 all versions, FortiOS 7.0 all versions may allow an authenticated user with knowledge of FSSO policy configurations to gain unauthorized access to protected network resources via crafted requests.",
                    "title": "nvd - https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2025-62439"
                },
                {
                    "category": "description",
                    "text": "An Improper Verification of Source of a Communication Channel vulnerability [CWE-940] vulnerability in Fortinet FortiOS 7.6.0 through 7.6.4, FortiOS 7.4.0 through 7.4.9, FortiOS 7.2 all versions, FortiOS 7.0 all versions may allow an authenticated user with knowledge of FSSO policy configurations to gain unauthorized access to protected network resources via crafted requests.",
                    "title": "cveprojectv5 - https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2025/62xxx/CVE-2025-62439.json"
                },
                {
                    "category": "other",
                    "text": "0.00022",
                    "title": "EPSS"
                },
                {
                    "category": "other",
                    "text": "6.0",
                    "title": "NCSC Score"
                },
                {
                    "category": "other",
                    "text": "There is cvss data available from source Siemens, There is cvss data available from source Fortinet, VENDOR FIX as product remediation category, Is related to a product by vendor Siemens, Is related to an uncommon product source",
                    "title": "NCSC Score top increasing factors"
                },
                {
                    "category": "other",
                    "text": "The CVSS vector string contains AV:N (Attack Vector: Network), There is cwe data available from source Nvd, The value of the most recent CVSS (V3) score",
                    "title": "NCSC Score top decreasing factors"
                }
            ],
            "product_status": {
                "known_affected": [
                    "CSAFPID-5035813",
                    "CSAFPID-5588007",
                    "CSAFPID-5589755",
                    "CSAFPID-5589759",
                    "CSAFPID-1770773",
                    "CSAFPID-1770774",
                    "CSAFPID-1770775",
                    "CSAFPID-1770776",
                    "CSAFPID-1770777",
                    "CSAFPID-1770778",
                    "CSAFPID-1770779",
                    "CSAFPID-1770780",
                    "CSAFPID-1770781",
                    "CSAFPID-1770782",
                    "CSAFPID-1770783",
                    "CSAFPID-1770784",
                    "CSAFPID-1770785",
                    "CSAFPID-1770786",
                    "CSAFPID-1770787",
                    "CSAFPID-1770788",
                    "CSAFPID-1770789",
                    "CSAFPID-1770880",
                    "CSAFPID-1770881",
                    "CSAFPID-1770882",
                    "CSAFPID-1770883",
                    "CSAFPID-1770884",
                    "CSAFPID-1770885",
                    "CSAFPID-1770886",
                    "CSAFPID-1770887",
                    "CSAFPID-1770888",
                    "CSAFPID-1770889",
                    "CSAFPID-1770890",
                    "CSAFPID-1770891",
                    "CSAFPID-1770892",
                    "CSAFPID-1771069",
                    "CSAFPID-1771070",
                    "CSAFPID-1771071",
                    "CSAFPID-1771072",
                    "CSAFPID-1851326",
                    "CSAFPID-2164566",
                    "CSAFPID-2164567",
                    "CSAFPID-2164568",
                    "CSAFPID-2633197",
                    "CSAFPID-2906513",
                    "CSAFPID-2985038",
                    "CSAFPID-3108036",
                    "CSAFPID-5036252",
                    "CSAFPID-5036253",
                    "CSAFPID-5036313",
                    "CSAFPID-5171065",
                    "CSAFPID-5474550",
                    "CSAFPID-5496692",
                    "CSAFPID-5589844",
                    "CSAFPID-2174332",
                    "CSAFPID-2838724",
                    "CSAFPID-2908590",
                    "CSAFPID-2908591",
                    "CSAFPID-5042749",
                    "CSAFPID-5593151",
                    "CSAFPID-5593152",
                    "CSAFPID-1272525",
                    "CSAFPID-6030085"
                ]
            },
            "references": [
                {
                    "category": "external",
                    "summary": "Source - nvd",
                    "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-62439"
                },
                {
                    "category": "external",
                    "summary": "Source raw - nvd",
                    "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2025-62439"
                },
                {
                    "category": "external",
                    "summary": "Source - cveprojectv5",
                    "url": "https://www.cve.org/CVERecord?id=CVE-2025-62439"
                },
                {
                    "category": "external",
                    "summary": "Source raw - cveprojectv5",
                    "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2025/62xxx/CVE-2025-62439.json"
                },
                {
                    "category": "external",
                    "summary": "Source - fortinet",
                    "url": "https://fortiguard.fortinet.com/psirt/FG-IR-25-384"
                },
                {
                    "category": "external",
                    "summary": "Source raw - fortinet",
                    "url": "https://fortiguard.fortinet.com/psirt/cvrf/FG-IR-25-384"
                },
                {
                    "category": "external",
                    "summary": "Source - ncscclear",
                    "url": "https://advisories.ncsc.nl/advisory?id=NCSC-2026-0061"
                },
                {
                    "category": "external",
                    "summary": "Source - certbundde",
                    "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0387.json"
                },
                {
                    "category": "external",
                    "summary": "Source - first",
                    "url": "https://api.first.org/data/v1/epss?cve=CVE-2025-62439"
                },
                {
                    "category": "external",
                    "summary": "Source raw - first",
                    "url": "https://api.first.org/data/v1/epss?limit=10000&offset=10000"
                },
                {
                    "category": "external",
                    "summary": "Source - siemens",
                    "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-975644.json"
                },
                {
                    "category": "external",
                    "summary": "Source - ncscclear",
                    "url": "https://advisories.ncsc.nl/advisory?id=NCSC-2026-0079"
                },
                {
                    "category": "external",
                    "summary": "Source - first",
                    "url": "https://api.first.org/data/v1/epss?limit=10000&offset=10000"
                },
                {
                    "category": "external",
                    "summary": "Source - nvd",
                    "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2025-62439"
                },
                {
                    "category": "external",
                    "summary": "Source - first",
                    "url": "https://api.first.org/data/v1/epss?limit=10000&offset=20000"
                },
                {
                    "category": "external",
                    "summary": "Source - cveprojectv5",
                    "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2025/62xxx/CVE-2025-62439.json"
                },
                {
                    "category": "external",
                    "summary": "Source - first",
                    "url": "https://api.first.org/data/v1/epss?limit=10000&offset=30000"
                },
                {
                    "category": "external",
                    "summary": "Reference - cveprojectv5; nvd",
                    "url": "https://fortiguard.fortinet.com/psirt/FG-IR-25-384"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0387.json"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0387"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://www.fortiguard.com/psirt/FG-IR-25-667"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://www.fortiguard.com/psirt/FG-IR-25-384"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://www.fortiguard.com/psirt/FG-IR-25-795"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://www.fortiguard.com/psirt/FG-IR-25-934"
                },
                {
                    "category": "external",
                    "summary": "Reference - certbundde",
                    "url": "https://www.fortiguard.com/psirt/FG-IR-25-1052"
                },
                {
                    "category": "external",
                    "summary": "Reference - cveprojectv5; nvd; siemens",
                    "url": "https://cert-portal.siemens.com/productcert/html/ssa-975644.html"
                },
                {
                    "category": "external",
                    "summary": "Reference - siemens",
                    "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-975644.json"
                }
            ],
            "remediations": [
                {
                    "category": "vendor_fix",
                    "details": "Update Fortigate NGFW to V7.4.10 or later version with FSSO TS Agent version 5.0 build 0324 or later version. Contact customer support to receive patch and update information",
                    "product_ids": [
                        "CSAFPID-1272525"
                    ]
                }
            ],
            "scores": [
                {
                    "cvss_v3": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N",
                        "baseScore": 4.2,
                        "baseSeverity": "MEDIUM"
                    },
                    "products": [
                        "CSAFPID-1272525",
                        "CSAFPID-1770773",
                        "CSAFPID-1770774",
                        "CSAFPID-1770775",
                        "CSAFPID-1770776",
                        "CSAFPID-1770777",
                        "CSAFPID-1770778",
                        "CSAFPID-1770779",
                        "CSAFPID-1770780",
                        "CSAFPID-1770781",
                        "CSAFPID-1770782",
                        "CSAFPID-1770783",
                        "CSAFPID-1770784",
                        "CSAFPID-1770785",
                        "CSAFPID-1770786",
                        "CSAFPID-1770787",
                        "CSAFPID-1770788",
                        "CSAFPID-1770789",
                        "CSAFPID-1770880",
                        "CSAFPID-1770881",
                        "CSAFPID-1770882",
                        "CSAFPID-1770883",
                        "CSAFPID-1770884",
                        "CSAFPID-1770885",
                        "CSAFPID-1770886",
                        "CSAFPID-1770887",
                        "CSAFPID-1770888",
                        "CSAFPID-1770889",
                        "CSAFPID-1770890",
                        "CSAFPID-1770891",
                        "CSAFPID-1770892",
                        "CSAFPID-1771069",
                        "CSAFPID-1771070",
                        "CSAFPID-1771071",
                        "CSAFPID-1771072",
                        "CSAFPID-1851326",
                        "CSAFPID-2164566",
                        "CSAFPID-2164567",
                        "CSAFPID-2164568",
                        "CSAFPID-2174332",
                        "CSAFPID-2633197",
                        "CSAFPID-2838724",
                        "CSAFPID-2906513",
                        "CSAFPID-2908590",
                        "CSAFPID-2908591",
                        "CSAFPID-2985038",
                        "CSAFPID-3108036",
                        "CSAFPID-5035813",
                        "CSAFPID-5036252",
                        "CSAFPID-5036253",
                        "CSAFPID-5036313",
                        "CSAFPID-5042749",
                        "CSAFPID-5171065",
                        "CSAFPID-5474550",
                        "CSAFPID-5496692",
                        "CSAFPID-5588007",
                        "CSAFPID-5589755",
                        "CSAFPID-5589759",
                        "CSAFPID-5589844",
                        "CSAFPID-5593151",
                        "CSAFPID-5593152",
                        "CSAFPID-6030085"
                    ]
                }
            ],
            "title": "CVE-2025-62439"
        }
    ]
}