{
  "document": {
    "acknowledgments": [
      {
        "names": [
          "\u003ca href=\"https://github.com/zcgonvh\"\u003ezcgonvh\u0026#39;s cat Vanilla\u003c/a\u003e"
        ]
      }
    ],
    "aggregate_severity": {
      "namespace": "https://www.microsoft.com/en-us/msrc/security-update-severity-rating-system",
      "text": "Important"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Public",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en-US",
    "notes": [
      {
        "category": "general",
        "text": "To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle",
        "title": "Additional Resources"
      },
      {
        "category": "legal_disclaimer",
        "text": "The information provided in the Microsoft Knowledge Base is provided \\\"as is\\\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.",
        "title": "Disclaimer"
      },
      {
        "category": "general",
        "text": "Required. The vulnerability documented by this CVE requires customer action to resolve.",
        "title": "Customer Action"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "secure@microsoft.com",
      "name": "Microsoft Security Response Center",
      "namespace": "https://msrc.microsoft.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "CVE-2025-53782 Microsoft Exchange Server Elevation of Privilege Vulnerability - HTML",
        "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53782"
      },
      {
        "category": "self",
        "summary": "CVE-2025-53782 Microsoft Exchange Server Elevation of Privilege Vulnerability - CSAF",
        "url": "https://msrc.microsoft.com/csaf/advisories/2025/msrc_cve-2025-53782.json"
      },
      {
        "category": "external",
        "summary": "Microsoft Exploitability Index",
        "url": "https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1"
      },
      {
        "category": "external",
        "summary": "Microsoft Support Lifecycle",
        "url": "https://support.microsoft.com/lifecycle"
      },
      {
        "category": "external",
        "summary": "Common Vulnerability Scoring System",
        "url": "https://www.first.org/cvss"
      }
    ],
    "title": "Microsoft Exchange Server Elevation of Privilege Vulnerability",
    "tracking": {
      "current_release_date": "2025-10-14T07:00:00.000Z",
      "generator": {
        "date": "2026-02-22T17:24:07.480Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2025-53782",
      "initial_release_date": "2025-10-14T07:00:00.000Z",
      "revision_history": [
        {
          "date": "2025-10-14T07:00:00.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c15.02.1748.039",
            "product": {
              "name": "Microsoft Exchange Server 2019 Cumulative Update 15 \u003c15.02.1748.039",
              "product_id": "2"
            }
          },
          {
            "category": "product_version",
            "name": "15.02.1748.039",
            "product": {
              "name": "Microsoft Exchange Server 2019 Cumulative Update 15 15.02.1748.039",
              "product_id": "12502"
            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft Exchange Server 2019 Cumulative Update 15"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c15.02.1544.036",
            "product": {
              "name": "Microsoft Exchange Server 2019 Cumulative Update 14 \u003c15.02.1544.036",
              "product_id": "3"
            }
          },
          {
            "category": "product_version",
            "name": "15.02.1544.036",
            "product": {
              "name": "Microsoft Exchange Server 2019 Cumulative Update 14 15.02.1544.036",
              "product_id": "12293"
            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft Exchange Server 2019 Cumulative Update 14"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c15.02.2562.029",
            "product": {
              "name": "Microsoft Exchange Server Subscription Edition RTM \u003c15.02.2562.029",
              "product_id": "1"
            }
          },
          {
            "category": "product_version",
            "name": "15.02.2562.029",
            "product": {
              "name": "Microsoft Exchange Server Subscription Edition RTM 15.02.2562.029",
              "product_id": "16792"
            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft Exchange Server Subscription Edition RTM"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c15.01.2507.061",
            "product": {
              "name": "Microsoft Exchange Server 2016 Cumulative Update 23 \u003c15.01.2507.061",
              "product_id": "4"
            }
          },
          {
            "category": "product_version",
            "name": "15.01.2507.061",
            "product": {
              "name": "Microsoft Exchange Server 2016 Cumulative Update 23 15.01.2507.061",
              "product_id": "12039"
            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft Exchange Server 2016 Cumulative Update 23"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2025-53782",
      "cwe": {
        "id": "CWE-303",
        "name": "Incorrect Implementation of Authentication Algorithm"
      },
      "notes": [
        {
          "category": "general",
          "text": "Microsoft",
          "title": "Assigning CNA"
        },
        {
          "category": "faq",
          "text": "To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take control of an affected system.\nAdditionally, an attacker could convince a local user to open a malicious file. The attacker would have to convince the user to click a link, typically by way of an enticement in an email or instant message, and then convince them to open the specially crafted file.",
          "title": "How could an attacker exploit this vulnerability?"
        },
        {
          "category": "faq",
          "text": "The attacker would be able to take over the mailboxes of all Exchange users, read emails, download attachments.",
          "title": "What privileges could be gained by an attacker who successfully exploited the vulnerability?"
        }
      ],
      "product_status": {
        "fixed": [
          "12039",
          "12293",
          "12502",
          "16792"
        ],
        "known_affected": [
          "1",
          "2",
          "3",
          "4"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2025-53782 Microsoft Exchange Server Elevation of Privilege Vulnerability - HTML",
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53782"
        },
        {
          "category": "self",
          "summary": "CVE-2025-53782 Microsoft Exchange Server Elevation of Privilege Vulnerability - CSAF",
          "url": "https://msrc.microsoft.com/csaf/advisories/2025/msrc_cve-2025-53782.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2025-10-14T07:00:00.000Z",
          "details": "15.02.1748.039:Security Update:https://support.microsoft.com/help/5066367",
          "product_ids": [
            "2"
          ],
          "url": "https://support.microsoft.com/help/5066367"
        },
        {
          "category": "vendor_fix",
          "date": "2025-10-14T07:00:00.000Z",
          "details": "15.02.1544.036:Security Update:https://support.microsoft.com/help/5066368",
          "product_ids": [
            "3"
          ],
          "url": "https://support.microsoft.com/help/5066368"
        },
        {
          "category": "vendor_fix",
          "date": "2025-10-14T07:00:00.000Z",
          "details": "15.02.2562.029:Security Update:https://support.microsoft.com/help/5066366",
          "product_ids": [
            "1"
          ],
          "url": "https://support.microsoft.com/help/5066366"
        },
        {
          "category": "vendor_fix",
          "date": "2025-10-14T07:00:00.000Z",
          "details": "15.01.2507.061:Security Update:https://support.microsoft.com/help/5066369",
          "product_ids": [
            "4"
          ],
          "url": "https://support.microsoft.com/help/5066369"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 8.4,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "environmentalsScore": 0.0,
            "exploitCodeMaturity": "UNPROVEN",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "remediationLevel": "OFFICIAL_FIX",
            "reportConfidence": "CONFIRMED",
            "scope": "UNCHANGED",
            "temporalScore": 7.3,
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1",
            "2",
            "3",
            "4"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Elevation of Privilege"
        },
        {
          "category": "exploit_status",
          "details": "Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely"
        }
      ],
      "title": "Microsoft Exchange Server Elevation of Privilege Vulnerability"
    }
  ]
}