{
  "document": {
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE"
      }
    },
    "lang": "nl",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this page to enhance access to its information and security advisories. The use of this security advisory is subject to the following terms and conditions:\n\n    NCSC-NL makes every reasonable effort to ensure that the content of this page 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 continuous keeping up-to-date. The information contained in this security advisory is intended solely for the purpose of providing general information to professional users. No rights can be derived from the information provided therein.\n\n    NCSC-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 this security advisory. This includes damage resulting from the inaccuracy of incompleteness of the information contained in the advisory.\n    This security advisory is subject to Dutch law. All disputes related to or arising from the use of this advisory will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings."
      },
      {
        "category": "description",
        "text": "Fortinet heeft kwetsbaarheden verholpen in FortiSandbox (versies 4.4.8 en 5.0.5), FortiAuthenticator (versies 6.3 tot 6.6.6) en FortiClient (versies 7.0, 7.2 en 7.4).",
        "title": "Feiten"
      },
      {
        "category": "description",
        "text": "De kwetsbaarheid in FortiSandbox betreft Cross-site Scripting, waardoor niet-geauthenticeerde aanvallers willekeurige commando\u0027s kunnen uitvoeren via speciaal gemaakte verzoeken. De kwetsbaarheid in FortiAuthenticator betreft een ontbrekende autorisatie die het mogelijk maakt voor alleen-lezen gebruikers om lokale gebruikersaccounts te wijzigen via een onbeveiligd bestand upload endpoint. De kwetsbaarheid in FortiClient stelt lokale aanvallers met lage privileges in staat om willekeurige bestandswijzigingen uit te voeren met verhoogde rechten door middel van speciaal gemaakte named pipe berichten, wat ongeautoriseerde toegang tot systeem bestanden mogelijk maakt.",
        "title": "Interpretaties"
      },
      {
        "category": "description",
        "text": "Fortinet heeft updates uitgebracht om de kwetsbaarheden te verhelpen. Zie bijgevoegde referenties voor meer informatie.",
        "title": "Oplossingen"
      },
      {
        "category": "general",
        "text": "medium",
        "title": "Kans"
      },
      {
        "category": "general",
        "text": "high",
        "title": "Schade"
      },
      {
        "category": "general",
        "text": "Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
        "title": "CWE-79"
      },
      {
        "category": "general",
        "text": "Missing Authorization",
        "title": "CWE-862"
      },
      {
        "category": "general",
        "text": "Improper Link Resolution Before File Access (\u0027Link Following\u0027)",
        "title": "CWE-59"
      }
    ],
    "publisher": {
      "category": "coordinator",
      "contact_details": "cert@ncsc.nl",
      "name": "Nationaal Cyber Security Centrum",
      "namespace": "https://www.ncsc.nl/"
    },
    "references": [
      {
        "category": "external",
        "summary": "Reference",
        "url": "https://fortiguard.fortinet.com/psirt/FG-IR-25-093"
      },
      {
        "category": "external",
        "summary": "Reference",
        "url": "https://fortiguard.fortinet.com/psirt/FG-IR-25-528"
      },
      {
        "category": "external",
        "summary": "Reference",
        "url": "https://fortiguard.fortinet.com/psirt/FG-IR-25-661"
      }
    ],
    "title": "Kwetsbaarheden verholpen in Fortinet FortiSandbox, FortiAuthenticator en FortiClient",
    "tracking": {
      "current_release_date": "2026-02-11T11:34:36.684955Z",
      "generator": {
        "date": "2025-08-04T16:30:00Z",
        "engine": {
          "name": "V.A.",
          "version": "1.3"
        }
      },
      "id": "NCSC-2026-0060",
      "initial_release_date": "2026-02-11T11:34:36.684955Z",
      "revision_history": [
        {
          "date": "2026-02-11T11:34:36.684955Z",
          "number": "1.0.0",
          "summary": "Initiele versie"
        }
      ],
      "status": "final",
      "version": "1.0.0"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-1"
                }
              }
            ],
            "category": "product_name",
            "name": "FortiAuthenticator"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-2"
                }
              }
            ],
            "category": "product_name",
            "name": "FortiClient"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-3"
                }
              }
            ],
            "category": "product_name",
            "name": "FortiClientWindows"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-4"
                }
              }
            ],
            "category": "product_name",
            "name": "FortiSandbox"
          }
        ],
        "category": "vendor",
        "name": "Fortinet"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2025-52436",
      "cwe": {
        "id": "CWE-79",
        "name": "Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)"
      },
      "notes": [
        {
          "category": "other",
          "text": "Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
          "title": "CWE-79"
        },
        {
          "category": "description",
          "text": "A Cross-site Scripting vulnerability in Fortinet FortiSandbox allows unauthenticated attackers to execute commands via crafted requests, addressed in versions 4.4.8 and 5.0.5.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-1",
          "CSAFPID-2",
          "CSAFPID-3",
          "CSAFPID-4"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2025-52436 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2025/cve-2025-52436.json"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-1",
            "CSAFPID-2",
            "CSAFPID-3",
            "CSAFPID-4"
          ]
        }
      ],
      "title": "CVE-2025-52436"
    },
    {
      "cve": "CVE-2026-21743",
      "cwe": {
        "id": "CWE-862",
        "name": "Missing Authorization"
      },
      "notes": [
        {
          "category": "other",
          "text": "Missing Authorization",
          "title": "CWE-862"
        },
        {
          "category": "description",
          "text": "A vulnerability in Fortinet FortiAuthenticator versions 6.3 to 6.6.6 allows read-only users to modify local users via an unprotected file upload endpoint due to missing authorization.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-1",
          "CSAFPID-2",
          "CSAFPID-3",
          "CSAFPID-4"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-21743 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-21743.json"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.2,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-1",
            "CSAFPID-2",
            "CSAFPID-3",
            "CSAFPID-4"
          ]
        }
      ],
      "title": "CVE-2026-21743"
    },
    {
      "cve": "CVE-2025-62676",
      "cwe": {
        "id": "CWE-59",
        "name": "Improper Link Resolution Before File Access (\u0027Link Following\u0027)"
      },
      "notes": [
        {
          "category": "other",
          "text": "Improper Link Resolution Before File Access (\u0027Link Following\u0027)",
          "title": "CWE-59"
        },
        {
          "category": "description",
          "text": "A vulnerability in Fortinet FortiClient versions 7.0, 7.2, and 7.4 allows local low-privilege attackers to perform arbitrary file writes with elevated permissions via crafted named pipe messages.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-1",
          "CSAFPID-2",
          "CSAFPID-3",
          "CSAFPID-4"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2025-62676 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2025/cve-2025-62676.json"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-1",
            "CSAFPID-2",
            "CSAFPID-3",
            "CSAFPID-4"
          ]
        }
      ],
      "title": "CVE-2025-62676"
    }
  ]
}

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:fortinet:fortiauthenticator:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "C1683FD1-9BDE-4596-9DBC-F146922E022C",
              "versionEndExcluding": "6.6.7",
              "versionStartIncluding": "6.3.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A missing authorization vulnerability in Fortinet FortiAuthenticator 6.6.0 through 6.6.6, FortiAuthenticator 6.5 all versions, FortiAuthenticator 6.4 all versions, FortiAuthenticator 6.3 all versions may allow a read-only user to make modification to local users via a file upload to an unprotected endpoint."
    }
  ],
  "id": "CVE-2026-21743",
  "lastModified": "2026-02-12T16:05:15.240",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.2,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.2,
        "impactScore": 5.9,
        "source": "psirt@fortinet.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-02-10T16:16:10.903",
  "references": [
    {
      "source": "psirt@fortinet.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://fortiguard.fortinet.com/psirt/FG-IR-25-528"
    }
  ],
  "sourceIdentifier": "psirt@fortinet.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ],
      "source": "psirt@fortinet.com",
      "type": "Primary"
    }
  ]
}

{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": "FortiSandbox versions 5.0.x ant\u00e9rieures \u00e0 5.0.2",
      "product": {
        "name": "FortiSandbox",
        "vendor": {
          "name": "Fortinet",
          "scada": false
        }
      }
    },
    {
      "description": "FortiClientWindows versions 7.4.x ant\u00e9rieures \u00e0 7.4.5",
      "product": {
        "name": "FortiClient",
        "vendor": {
          "name": "Fortinet",
          "scada": false
        }
      }
    },
    {
      "description": "FortiClientWindows versions 7.x ant\u00e9rieures \u00e0 7.2.13",
      "product": {
        "name": "FortiClient",
        "vendor": {
          "name": "Fortinet",
          "scada": false
        }
      }
    },
    {
      "description": "FortiSandbox versions 4.x ant\u00e9rieures \u00e0 4.4.8",
      "product": {
        "name": "FortiSandbox",
        "vendor": {
          "name": "Fortinet",
          "scada": false
        }
      }
    },
    {
      "description": "FortiAuthenticator versions 6.3.x \u00e0 6.6.x ant\u00e9rieures \u00e0 6.6.7",
      "product": {
        "name": "FortiAuthenticator",
        "vendor": {
          "name": "Fortinet",
          "scada": false
        }
      }
    },
    {
      "description": "FortiOS versions 7.6.x ant\u00e9rieures \u00e0 7.6.5 avec FSSO TS Agent version 5.0 build 0324",
      "product": {
        "name": "FortiOS",
        "vendor": {
          "name": "Fortinet",
          "scada": false
        }
      }
    },
    {
      "description": "FortiOS versions 6.x \u00e0 7.x ant\u00e9rieures \u00e0 7.4.10 avec FSSO TS Agent version 5.0 build 0324",
      "product": {
        "name": "FortiOS",
        "vendor": {
          "name": "Fortinet",
          "scada": false
        }
      }
    }
  ],
  "affected_systems_content": "",
  "content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
  "cves": [
    {
      "name": "CVE-2025-55018",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-55018"
    },
    {
      "name": "CVE-2025-62439",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-62439"
    },
    {
      "name": "CVE-2026-21743",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-21743"
    },
    {
      "name": "CVE-2026-22153",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-22153"
    },
    {
      "name": "CVE-2025-68686",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-68686"
    },
    {
      "name": "CVE-2025-64157",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-64157"
    },
    {
      "name": "CVE-2025-52436",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-52436"
    },
    {
      "name": "CVE-2025-62676",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-62676"
    }
  ],
  "initial_release_date": "2026-02-11T00:00:00",
  "last_revision_date": "2026-02-11T00:00:00",
  "links": [],
  "reference": "CERTFR-2026-AVI-0147",
  "revisions": [
    {
      "description": "Version initiale",
      "revision_date": "2026-02-11T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "Injection de code indirecte \u00e0 distance (XSS)"
    },
    {
      "description": "Ex\u00e9cution de code arbitraire \u00e0 distance"
    },
    {
      "description": "Contournement de la politique de s\u00e9curit\u00e9"
    },
    {
      "description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
    },
    {
      "description": "\u00c9l\u00e9vation de privil\u00e8ges"
    }
  ],
  "summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans les produits Fortinet. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer une ex\u00e9cution de code arbitraire \u00e0 distance, une \u00e9l\u00e9vation de privil\u00e8ges et une atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es.",
  "title": "Multiples vuln\u00e9rabilit\u00e9s dans les produits Fortinet",
  "vendor_advisories": [
    {
      "published_at": "2026-02-10",
      "title": "Bulletin de s\u00e9curit\u00e9 Fortinet FG-IR-25-795",
      "url": "https://www.fortiguard.com/psirt/FG-IR-25-795"
    },
    {
      "published_at": "2026-02-10",
      "title": "Bulletin de s\u00e9curit\u00e9 Fortinet FG-IR-25-934",
      "url": "https://www.fortiguard.com/psirt/FG-IR-25-934"
    },
    {
      "published_at": "2026-02-10",
      "title": "Bulletin de s\u00e9curit\u00e9 Fortinet FG-IR-25-1052",
      "url": "https://www.fortiguard.com/psirt/FG-IR-25-1052"
    },
    {
      "published_at": "2026-02-10",
      "title": "Bulletin de s\u00e9curit\u00e9 Fortinet FG-IR-25-384",
      "url": "https://www.fortiguard.com/psirt/FG-IR-25-384"
    },
    {
      "published_at": "2026-02-10",
      "title": "Bulletin de s\u00e9curit\u00e9 Fortinet FG-IR-25-093",
      "url": "https://www.fortiguard.com/psirt/FG-IR-25-093"
    },
    {
      "published_at": "2026-02-10",
      "title": "Bulletin de s\u00e9curit\u00e9 Fortinet FG-IR-25-661",
      "url": "https://www.fortiguard.com/psirt/FG-IR-25-661"
    },
    {
      "published_at": "2026-02-10",
      "title": "Bulletin de s\u00e9curit\u00e9 Fortinet FG-IR-25-528",
      "url": "https://www.fortiguard.com/psirt/FG-IR-25-528"
    },
    {
      "published_at": "2026-02-10",
      "title": "Bulletin de s\u00e9curit\u00e9 Fortinet FG-IR-25-667",
      "url": "https://www.fortiguard.com/psirt/FG-IR-25-667"
    }
  ]
}

{
  "affected": [],
  "aliases": [
    "CVE-2026-21743"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-862"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-02-10T16:16:10Z",
    "severity": "HIGH"
  },
  "details": "A missing authorization vulnerability in Fortinet FortiAuthenticator 6.6.0 through 6.6.6, FortiAuthenticator 6.5 all versions, FortiAuthenticator 6.4 all versions, FortiAuthenticator 6.3 all versions may allow a read-only user to make modification to local users via a file upload to an unprotected endpoint.",
  "id": "GHSA-73jp-396j-hc6q",
  "modified": "2026-02-10T18:30:38Z",
  "published": "2026-02-10T18:30:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-21743"
    },
    {
      "type": "WEB",
      "url": "https://fortiguard.fortinet.com/psirt/FG-IR-25-528"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}