certfr_avis - certfr-2025-avi-0659

CERTFR-2025-AVI-0659

Vulnerability from certfr_avis

Une vulnérabilité a été découverte dans Microsoft Exchange Server. Elle permet à un attaquant de provoquer une élévation de privilèges.

Solutions

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Impacted products

Vendor	Product	Description
Microsoft	N/A	Microsoft Exchange Server 2019 Cumulative Update 14 versions antérieures à 15.02.1544.025
Microsoft	N/A	Microsoft Exchange Server 2019 Cumulative Update 15 versions antérieures à 15.02.1748.024
Microsoft	N/A	Microsoft Exchange Server 2016 Cumulative Update 23 versions antérieures à 15.01.2507.055
Microsoft	N/A	Microsoft Exchange Server Subscription Edition RTM versions antérieures à 15.02.2562.017

References

Title

Publication Time

Tags

Bulletin de sécurité Microsoft CVE-2025-53786

2025-08-06

vendor-advisory

Show details on source website

JSON

To clipboard

{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": "Microsoft Exchange Server 2019 Cumulative Update 14 versions ant\u00e9rieures \u00e0 15.02.1544.025",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Exchange Server 2019 Cumulative Update 15 versions ant\u00e9rieures \u00e0 15.02.1748.024",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Exchange Server 2016 Cumulative Update 23 versions ant\u00e9rieures \u00e0 15.01.2507.055",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Exchange Server Subscription Edition RTM versions ant\u00e9rieures \u00e0 15.02.2562.017",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "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-2025-53786",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-53786"
    }
  ],
  "initial_release_date": "2025-08-07T00:00:00",
  "last_revision_date": "2025-08-07T00:00:00",
  "links": [],
  "reference": "CERTFR-2025-AVI-0659",
  "revisions": [
    {
      "description": "Version initiale",
      "revision_date": "2025-08-07T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "\u00c9l\u00e9vation de privil\u00e8ges"
    }
  ],
  "summary": "Une vuln\u00e9rabilit\u00e9 a \u00e9t\u00e9 d\u00e9couverte dans Microsoft Exchange Server. Elle permet \u00e0 un attaquant de provoquer une \u00e9l\u00e9vation de privil\u00e8ges.",
  "title": "Vuln\u00e9rabilit\u00e9 dans Microsoft Exchange Server",
  "vendor_advisories": [
    {
      "published_at": "2025-08-06",
      "title": "Bulletin de s\u00e9curit\u00e9 Microsoft CVE-2025-53786",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53786"
    }
  ]
}

CVE-2025-53786 (GCVE-0-2025-53786)

Vulnerability from cvelistv5

Published

2025-08-06 16:02

Modified

2025-11-10 00:11

Severity ?

8.0 (High) - CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C

CWE

CWE-287 - Improper Authentication

Summary

On April 18th 2025, Microsoft announced Exchange Server Security Changes for Hybrid Deployments and accompanying non-security Hot Fix. Microsoft made these changes in the general interest of improving the security of hybrid Exchange deployments. Following further investigation, Microsoft identified specific security implications tied to the guidance and configuration steps outlined in the April announcement. Microsoft is issuing CVE-2025-53786 to document a vulnerability that is addressed by taking the steps documented with the April 18th announcement. Microsoft strongly recommends reading the information, installing the April 2025 (or later) Hot Fix and implementing the changes in your Exchange Server and hybrid environment.

References

URL

Tags

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53786

vendor-advisory

Impacted products

Vendor

Product

Version

Microsoft

Microsoft Exchange Server Subscription Edition RTM

Version: 15.02.0.0 < 15.02.2562.017

Microsoft	Microsoft Exchange Server 2019 Cumulative Update 15	Version: 15.02.0.0 < 15.02.1748.024
Microsoft	Microsoft Exchange Server 2016 Cumulative Update 23	Version: 15.01.0.0 < 15.01.2507.055
Microsoft	Microsoft Exchange Server 2019 Cumulative Update 14	Version: 15.02.0.0 < 15.02.1544.025

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-53786",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-08-06T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-08-07T03:55:24.834Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "platforms": [
            "x64-based Systems"
          ],
          "product": "Microsoft Exchange Server Subscription Edition RTM",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "15.02.2562.017",
              "status": "affected",
              "version": "15.02.0.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "platforms": [
            "x64-based Systems"
          ],
          "product": "Microsoft Exchange Server 2019 Cumulative Update 15",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "15.02.1748.024",
              "status": "affected",
              "version": "15.02.0.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "platforms": [
            "x64-based Systems"
          ],
          "product": "Microsoft Exchange Server 2016 Cumulative Update 23",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "15.01.2507.055",
              "status": "affected",
              "version": "15.01.0.0",
              "versionType": "custom"
            }
          ]
        },
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          ],
          "product": "Microsoft Exchange Server 2019 Cumulative Update 14",
          "vendor": "Microsoft",
          "versions": [
            {
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              "status": "affected",
              "version": "15.02.0.0",
              "versionType": "custom"
            }
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      ],
      "cpeApplicability": [
        {
          "nodes": [
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                  "criteria": "cpe:2.3:a:microsoft:exchange_server_se:*:RTM:*:*:*:*:*:*",
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                  "versionStartIncluding": "15.02.0.0",
                  "vulnerable": true
                },
                {
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                  "versionEndExcluding": "15.02.1748.024",
                  "versionStartIncluding": "15.02.0.0",
                  "vulnerable": true
                },
                {
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                  "versionEndExcluding": "15.01.2507.055",
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              "negate": false,
              "operator": "OR"
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      ],
      "datePublic": "2025-08-12T07:00:00.000Z",
      "descriptions": [
        {
          "lang": "en-US",
          "value": "On April 18th 2025, Microsoft announced Exchange Server Security Changes for Hybrid Deployments and accompanying non-security Hot Fix. Microsoft made these changes in the general interest of improving the security of hybrid Exchange deployments. Following further investigation, Microsoft identified specific security implications tied to the guidance and configuration steps outlined in the April announcement. Microsoft is issuing CVE-2025-53786 to document a vulnerability that is addressed by taking the steps documented with the April 18th announcement. Microsoft strongly recommends reading the information, installing the April 2025 (or later) Hot Fix and implementing the changes in your Exchange Server and hybrid environment."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C",
            "version": "3.1"
          },
          "format": "CVSS",
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              "description": "CWE-287: Improper Authentication",
              "lang": "en-US",
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      "providerMetadata": {
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      },
      "references": [
        {
          "name": "Microsoft Exchange Server Hybrid Deployment Elevation of Privilege Vulnerability",
          "tags": [
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          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53786"
        }
      ],
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    "datePublished": "2025-08-06T16:02:05.764Z",
    "dateReserved": "2025-07-09T13:40:07.624Z",
    "dateUpdated": "2025-11-10T00:11:55.272Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

Action not permitted

CERTFR-2025-AVI-0659

Vulnerability from certfr_avis

Solutions

CVE-2025-53786 (GCVE-0-2025-53786)

Vulnerability from cvelistv5

Tags

Sightings

Nomenclature