{
  "document": {
    "acknowledgments": [
      {
        "names": [
          "Microsoft Offensive Research \u0026amp; Security Engineering"
        ]
      }
    ],
    "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-2025-27489 Azure Local Elevation of Privilege Vulnerability - HTML",
        "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-27489"
      },
      {
        "category": "self",
        "summary": "CVE-2025-27489 Azure Local Elevation of Privilege Vulnerability - CSAF",
        "url": "https://msrc.microsoft.com/csaf/advisories/2025/msrc_cve-2025-27489.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": "Azure Local Elevation of Privilege Vulnerability",
    "tracking": {
      "current_release_date": "2025-04-09T07:00:00.000Z",
      "generator": {
        "date": "2025-07-22T19:57:31.485Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2025-27489",
      "initial_release_date": "2025-04-08T07:00:00.000Z",
      "revision_history": [
        {
          "date": "2025-04-08T07:00:00.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
        },
        {
          "date": "2025-04-09T07:00:00.000Z",
          "legacy_version": "2",
          "number": "2",
          "summary": "The security updates for Windows 10 for 32-bit Systems and Windows 10 for x64-based Systems are now available. See the Security Updates table for more information."
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c10.0.20348.3328",
            "product": {
              "name": "Azure Stack HCI OS 22H2 \u003c10.0.20348.3328",
              "product_id": "2"
            }
          },
          {
            "category": "product_version",
            "name": "10.0.20348.3328",
            "product": {
              "name": "Azure Stack HCI OS 22H2 10.0.20348.3328",
              "product_id": "12426"
            }
          }
        ],
        "category": "product_name",
        "name": "Azure Stack HCI OS 22H2"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c10.0.25398.1486",
            "product": {
              "name": "Azure Stack HCI OS 23H2 \u003c10.0.25398.1486",
              "product_id": "1"
            }
          },
          {
            "category": "product_version",
            "name": "10.0.25398.1486",
            "product": {
              "name": "Azure Stack HCI OS 23H2 10.0.25398.1486",
              "product_id": "12427"
            }
          }
        ],
        "category": "product_name",
        "name": "Azure Stack HCI OS 23H2"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2025-27489",
      "cwe": {
        "id": "CWE-20",
        "name": "Improper Input Validation"
      },
      "notes": [
        {
          "category": "general",
          "text": "Microsoft",
          "title": "Assigning CNA"
        },
        {
          "category": "faq",
          "text": "An attacker who successfully exploited this vulnerability could load a non-Microsoft DLL into an enclave, potentially leading to code execution within the context of the target enclave.",
          "title": "What privileges would an attacker gain by successfully exploiting this vulnerability?"
        },
        {
          "category": "faq",
          "text": "Yes. As of April 9, 2025, the security update (5055547) for Windows 10 for x64-based Systems and Windows 10 for 32-bit Systems  are available. Customers running Windows 10 should ensure the update is installed to be protected from this vulnerability.",
          "title": "Are the updates for Windows 10 for x64-based Systems and Windows 10 for 32-bit Systems currently available?"
        }
      ],
      "product_status": {
        "fixed": [
          "12426",
          "12427"
        ],
        "known_affected": [
          "1",
          "2"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2025-27489 Azure Local Elevation of Privilege Vulnerability - HTML",
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-27489"
        },
        {
          "category": "self",
          "summary": "CVE-2025-27489 Azure Local Elevation of Privilege Vulnerability - CSAF",
          "url": "https://msrc.microsoft.com/csaf/advisories/2025/msrc_cve-2025-27489.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2025-04-08T07:00:00.000Z",
          "details": "10.0.20348.3328:Security Update:https://support.microsoft.com/help/5055526",
          "product_ids": [
            "2"
          ],
          "url": "https://support.microsoft.com/help/5055526"
        },
        {
          "category": "vendor_fix",
          "date": "2025-04-08T07:00:00.000Z",
          "details": "10.0.25398.1486:Security Update:https://learn.microsoft.com/en-us/azure/azure-local/release-information-23h2?view=azloc-2503",
          "product_ids": [
            "1"
          ],
          "url": "https://learn.microsoft.com/en-us/azure/azure-local/release-information-23h2?view=azloc-2503"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "environmentalsScore": 0.0,
            "exploitCodeMaturity": "UNPROVEN",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "remediationLevel": "OFFICIAL_FIX",
            "reportConfidence": "CONFIRMED",
            "scope": "UNCHANGED",
            "temporalScore": 6.8,
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1",
            "2"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Elevation of Privilege"
        },
        {
          "category": "exploit_status",
          "details": "Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely"
        }
      ],
      "title": "Azure Local Elevation of Privilege Vulnerability"
    }
  ]
}