ncsc-2025-0157
Vulnerability from csaf_ncscnl
Published
2025-05-13 19:14
Modified
2025-05-13 19:14
Summary
Kwetsbaarheden verholpen in Microsoft Defender

Notes

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: 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. 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. 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.
Feiten
Microsoft heeft kwetsbaarheden verholpen in Defender for Endpoint en Defender for Identity.
Interpretaties
Een kwaadwillende kan de kwetsbaarheden misbruiken om zich voor te doen als andere gebruiker en zich verhoogde rechten toe te kennen, waarmee uitvoer van willekeurige code met SYSTEM rechten mogelijk wordt. Voor succesvol misbruik moet de kwaadwillende lokale toegang tot het kwetsbare systeem hebben, of toegang hebben tot hetzelfde segment in het LAN waar het kwetsbare systeem zich bevindt. Van de kwetsbaarheid met kenmerk CVE-2025-26685 geeft Microsoft aan informatie te hebben dat deze besproken wordt binnen gesloten fora. Er is (nog) geen publieke Proof-of-Concept vrijgegeven.
Oplossingen
Microsoft heeft updates beschikbaar gesteld waarmee de beschreven kwetsbaarheden worden verholpen. We raden u aan om deze updates te installeren. Meer informatie over de kwetsbaarheden, de installatie van de updates en eventuele work-arounds vindt u op: https://portal.msrc.microsoft.com/en-us/security-guidance
Kans
medium
Schade
high
CWE-73
External Control of File Name or Path
CWE-287
Improper Authentication


To clipboard 

{
  "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": "Microsoft heeft kwetsbaarheden verholpen in Defender for Endpoint en Defender for Identity.",
        "title": "Feiten"
      },
      {
        "category": "description",
        "text": "Een kwaadwillende kan de kwetsbaarheden misbruiken om zich voor te doen als andere gebruiker en zich verhoogde rechten toe te kennen, waarmee uitvoer van willekeurige code met SYSTEM rechten mogelijk wordt.\n\nVoor succesvol misbruik moet de kwaadwillende lokale toegang tot het kwetsbare systeem hebben, of toegang hebben tot hetzelfde segment in het LAN waar het kwetsbare systeem zich bevindt.\n\nVan de kwetsbaarheid met kenmerk CVE-2025-26685 geeft Microsoft aan informatie te hebben dat deze besproken wordt binnen gesloten fora. Er is (nog) geen publieke Proof-of-Concept vrijgegeven.",
        "title": "Interpretaties"
      },
      {
        "category": "description",
        "text": "Microsoft heeft updates beschikbaar gesteld waarmee de beschreven kwetsbaarheden worden verholpen. We raden u aan om deze updates te installeren. Meer informatie over de kwetsbaarheden, de installatie van de updates en eventuele work-arounds vindt u op:\n\nhttps://portal.msrc.microsoft.com/en-us/security-guidance",
        "title": "Oplossingen"
      },
      {
        "category": "general",
        "text": "medium",
        "title": "Kans"
      },
      {
        "category": "general",
        "text": "high",
        "title": "Schade"
      },
      {
        "category": "general",
        "text": "External Control of File Name or Path",
        "title": "CWE-73"
      },
      {
        "category": "general",
        "text": "Improper Authentication",
        "title": "CWE-287"
      }
    ],
    "publisher": {
      "category": "coordinator",
      "contact_details": "cert@ncsc.nl",
      "name": "Nationaal Cyber Security Centrum",
      "namespace": "https://www.ncsc.nl/"
    },
    "title": "Kwetsbaarheden verholpen in Microsoft Defender",
    "tracking": {
      "current_release_date": "2025-05-13T19:14:25.545635Z",
      "generator": {
        "date": "2025-02-25T15:15:00Z",
        "engine": {
          "name": "V.A.",
          "version": "1.0"
        }
      },
      "id": "NCSC-2025-0157",
      "initial_release_date": "2025-05-13T19:14:25.545635Z",
      "revision_history": [
        {
          "date": "2025-05-13T19:14:25.545635Z",
          "number": "1.0.0",
          "summary": "Initiele versie"
        }
      ],
      "status": "final",
      "version": "1.0.0"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "branches": [
                  {
                    "category": "product_version_range",
                    "name": "vers:microsoft/unknown",
                    "product": {
                      "name": "vers:microsoft/unknown",
                      "product_id": "CSAFPID-1520091",
                      "product_identification_helper": {
                        "cpe": "cpe:2.3:a:microsoft:defender_for_endpoint:-:*:*:*:*:*:*:*"
                      }
                    }
                  }
                ],
                "category": "product_name",
                "name": "Microsoft Defender for Endpoint for Linux"
              },
              {
                "branches": [
                  {
                    "category": "product_version_range",
                    "name": "vers:microsoft/unknown",
                    "product": {
                      "name": "vers:microsoft/unknown",
                      "product_id": "CSAFPID-2835645",
                      "product_identification_helper": {
                        "cpe": "cpe:2.3:a:microsoft:defender_for_identity:-:*:*:*:*:*:*:*"
                      }
                    }
                  }
                ],
                "category": "product_name",
                "name": "Microsoft Defender for Identity"
              }
            ],
            "category": "product_family",
            "name": "System Center"
          }
        ],
        "category": "vendor",
        "name": "Microsoft"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2025-26684",
      "cwe": {
        "id": "CWE-73",
        "name": "External Control of File Name or Path"
      },
      "notes": [
        {
          "category": "other",
          "text": "External Control of File Name or Path",
          "title": "CWE-73"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-1520091",
          "CSAFPID-2835645"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2025-26684",
          "url": "https://api.ncsc.nl/velma/v1/vulnerabilities/2025/CVE-2025-26684.json"
        }
      ],
      "title": "CVE-2025-26684"
    },
    {
      "cve": "CVE-2025-26685",
      "cwe": {
        "id": "CWE-287",
        "name": "Improper Authentication"
      },
      "notes": [
        {
          "category": "other",
          "text": "Improper Authentication",
          "title": "CWE-287"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-1520091",
          "CSAFPID-2835645"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2025-26685",
          "url": "https://api.ncsc.nl/velma/v1/vulnerabilities/2025/CVE-2025-26685.json"
        }
      ],
      "title": "CVE-2025-26685"
    }
  ]
}


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