ncsc-2025-0243
Vulnerability from csaf_ncscnl
Published
2025-08-07 09:15
Modified
2025-08-07 09:15
Summary
Kwetsbaarheid verholpen in Microsoft Exchange

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 een kwetsbaarheid verholpen in Microsoft Exchange Server (hybride implementaties).
Interpretaties
De kwetsbaarheid stelt een gebruiker met administratieve rechten op een on-premise Microsoft Exchange server in staat om de rechten te verhogen naar de cloud.
Oplossingen
Microsoft heeft een Hot Fix uitgebracht voor het verhelpen van de kwetsbaarheid. Zie bijgevoegde referenties voor meer informatie.
Kans
medium
Schade
high
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 een kwetsbaarheid verholpen in Microsoft Exchange Server (hybride implementaties).",
        "title": "Feiten"
      },
      {
        "category": "description",
        "text": "De kwetsbaarheid stelt een gebruiker met administratieve rechten op een on-premise Microsoft Exchange server in staat om de rechten te verhogen naar de cloud. ",
        "title": "Interpretaties"
      },
      {
        "category": "description",
        "text": "Microsoft heeft een Hot Fix uitgebracht voor het verhelpen van de kwetsbaarheid. Zie bijgevoegde referenties voor meer informatie.",
        "title": "Oplossingen"
      },
      {
        "category": "general",
        "text": "medium",
        "title": "Kans"
      },
      {
        "category": "general",
        "text": "high",
        "title": "Schade"
      },
      {
        "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/"
    },
    "references": [
      {
        "category": "external",
        "summary": "Reference",
        "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53786"
      }
    ],
    "title": "Kwetsbaarheid verholpen in Microsoft Exchange",
    "tracking": {
      "current_release_date": "2025-08-07T09:15:22.461434Z",
      "generator": {
        "date": "2025-08-04T16:30:00Z",
        "engine": {
          "name": "V.A.",
          "version": "1.2"
        }
      },
      "id": "NCSC-2025-0243",
      "initial_release_date": "2025-08-07T09:15:22.461434Z",
      "revision_history": [
        {
          "date": "2025-08-07T09:15:22.461434Z",
          "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-3035043",
                      "product_identification_helper": {
                        "cpe": "cpe:2.3:a:microsoft:exchange_server_2016:*:cumulative_update_23:*:*:*:*:*:*"
                      }
                    }
                  }
                ],
                "category": "product_name",
                "name": "Microsoft Exchange Server 2016 Cumulative Update 23"
              },
              {
                "branches": [
                  {
                    "category": "product_version_range",
                    "name": "vers:microsoft/unknown",
                    "product": {
                      "name": "vers:microsoft/unknown",
                      "product_id": "CSAFPID-3035044",
                      "product_identification_helper": {
                        "cpe": "cpe:2.3:a:microsoft:exchange_server_2019:*:cumulative_update_14:*:*:*:*:*:*"
                      }
                    }
                  }
                ],
                "category": "product_name",
                "name": "Microsoft Exchange Server 2019 Cumulative Update 14"
              },
              {
                "branches": [
                  {
                    "category": "product_version_range",
                    "name": "vers:microsoft/unknown",
                    "product": {
                      "name": "vers:microsoft/unknown",
                      "product_id": "CSAFPID-3035042",
                      "product_identification_helper": {
                        "cpe": "cpe:2.3:a:microsoft:exchange_server_2019:*:cumulative_update_15:*:*:*:*:*:*"
                      }
                    }
                  }
                ],
                "category": "product_name",
                "name": "Microsoft Exchange Server 2019 Cumulative Update 15"
              },
              {
                "branches": [
                  {
                    "category": "product_version_range",
                    "name": "vers:microsoft/unknown",
                    "product": {
                      "name": "vers:microsoft/unknown",
                      "product_id": "CSAFPID-3035041",
                      "product_identification_helper": {
                        "cpe": "cpe:2.3:a:microsoft:exchange_server_se:*:RTM:*:*:*:*:*:*"
                      }
                    }
                  }
                ],
                "category": "product_name",
                "name": "Microsoft Exchange Server Subscription Edition RTM"
              }
            ],
            "category": "product_family",
            "name": "Server Software"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/15.01.0|\u003c15.01.2507.055",
                "product": {
                  "name": "vers:unknown/15.01.0|\u003c15.01.2507.055",
                  "product_id": "CSAFPID-3034834"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft Exchange Server 2016 Cumulative Update 23"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/15.02.0.0|\u003c15.02.1544.025",
                "product": {
                  "name": "vers:unknown/15.02.0.0|\u003c15.02.1544.025",
                  "product_id": "CSAFPID-3034835"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft Exchange Server 2019 Cumulative Update 14"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/15.02.0|\u003c15.02.1748.024",
                "product": {
                  "name": "vers:unknown/15.02.0|\u003c15.02.1748.024",
                  "product_id": "CSAFPID-3034833"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft Exchange Server 2019 Cumulative Update 15"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/15.02.0.0|\u003c15.02.2562.017",
                "product": {
                  "name": "vers:unknown/15.02.0.0|\u003c15.02.2562.017",
                  "product_id": "CSAFPID-3034832"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft Exchange Server Subscription Edition RTM"
          }
        ],
        "category": "vendor",
        "name": "Microsoft"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2025-53786",
      "cwe": {
        "id": "CWE-287",
        "name": "Improper Authentication"
      },
      "notes": [
        {
          "category": "other",
          "text": "Improper Authentication",
          "title": "CWE-287"
        },
        {
          "category": "other",
          "text": "Improper Authentication",
          "title": "CWE-287"
        },
        {
          "category": "other",
          "text": "Improper Authentication",
          "title": "CWE-287"
        },
        {
          "category": "other",
          "text": "Improper Authentication",
          "title": "CWE-287"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-3035043",
          "CSAFPID-3034834",
          "CSAFPID-3035044",
          "CSAFPID-3034835",
          "CSAFPID-3035042",
          "CSAFPID-3034833",
          "CSAFPID-3035041",
          "CSAFPID-3034832"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2025-53786 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2025/cve-2025-53786.json"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 8.0,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-3035043",
            "CSAFPID-3034834",
            "CSAFPID-3035044",
            "CSAFPID-3034835",
            "CSAFPID-3035042",
            "CSAFPID-3034833",
            "CSAFPID-3035041",
            "CSAFPID-3034832"
          ]
        }
      ],
      "title": "CVE-2025-53786"
    }
  ]
}


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