{"id":"CVE-2026-69821","aliases":[],"cve":{"records":[{"id":"CVE-2026-69821","source":"microsoft","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-08-03T22:50:31.851Z","published":"2026-09-08T17:16:12.628Z","modified":"2026-10-30T21:54:35.894Z"}],"publishers":[{"name":"microsoft","role":"CNA","organizationId":"f38d906d-7342-40ea-92c1-6c4a2c6478c8","modified":"2026-10-30T21:54:35.894Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-09-09T10:05:12.370Z"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69821","tags":["vendor-advisory","patch"],"source":"microsoft"}],"weaknesses":[{"id":"CWE-116","description":"CWE-116: Improper Encoding or Escaping of Output","source":"microsoft"}],"applicability":[{"source":"microsoft","statements":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*","versionStartIncluding":"10.0.17763.0","versionEndExcluding":"10.0.17763.9245"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*","versionStartIncluding":"10.0.17763.0","versionEndExcluding":"10.0.17763.9245"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*","versionStartIncluding":"10.0.17763.0","versionEndExcluding":"10.0.17763.9245"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*","versionStartIncluding":"10.0.20348.0","versionEndExcluding":"10.0.20348.5622"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*","versionStartIncluding":"10.0.26100.0","versionEndExcluding":"10.0.26100.33438"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*","versionStartIncluding":"10.0.26100.0","versionEndExcluding":"10.0.26100.33438"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*","versionStartIncluding":"10.0.14393.0","versionEndExcluding":"10.0.14393.9512"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*","versionStartIncluding":"10.0.14393.0","versionEndExcluding":"10.0.14393.9512"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*","versionStartIncluding":"10.0.14393.0","versionEndExcluding":"10.0.14393.9512"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:x64:*","versionStartIncluding":"6.2.9200.0","versionEndExcluding":"6.2.9200.26349"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:x64:*","versionStartIncluding":"6.2.9200.0","versionEndExcluding":"6.2.9200.26349"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_server_2012_R2:*:*:*:*:*:*:x64:*","versionStartIncluding":"6.3.9600.0","versionEndExcluding":"6.3.9600.23398"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_server_2012_R2:*:*:*:*:*:*:x64:*","versionStartIncluding":"6.3.9600.0","versionEndExcluding":"6.3.9600.23398"}]}]}]}],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-09-09T04:18:34.802571Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"no"},{"name":"Technical Impact","value":"total"}]}]},"title":"Active Directory Certificate Services (AD CS) Elevation of Privilege Vulnerability","titleSource":"microsoft","descriptionSource":"microsoft","description":"Improper encoding or escaping of output in Active Directory Certificate Services (AD CS) allows an authorized attacker to elevate privileges locally.","score":7.8,"severity":"high","published":"2026-09-08T17:16:12.628Z","modified":"2026-10-30T21:54:35.894Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"Microsoft","name":"Windows 10 Version 1607","platforms":["32-bit Systems","x64-based 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Systems"],"versions":[{"version":"10.0.14393.0","status":"affected","lessThan":"10.0.14393.9512","versionType":"custom"}],"cpes":[],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-69821"},{"vendor":"Microsoft","name":"Windows Server 2016 (Server Core installation)","platforms":["x64-based Systems"],"versions":[{"version":"10.0.14393.0","status":"affected","lessThan":"10.0.14393.9512","versionType":"custom"}],"cpes":[],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-69821"},{"vendor":"Microsoft","name":"Windows Server 2019","platforms":["x64-based Systems"],"versions":[{"version":"10.0.17763.0","status":"affected","lessThan":"10.0.17763.9245","versionType":"custom"}],"cpes":[],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-69821"},{"vendor":"Microsoft","name":"Windows Server 2019 (Server Core installation)","platforms":["x64-based Systems"],"versions":[{"version":"10.0.17763.0","status":"affected","lessThan":"10.0.17763.9245","versionType":"custom"}],"cpes":[],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-69821"},{"vendor":"Microsoft","name":"Windows Server 2022","platforms":["x64-based Systems"],"versions":[{"version":"10.0.20348.0","status":"affected","lessThan":"10.0.20348.5622","versionType":"custom"}],"cpes":[],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-69821"},{"vendor":"Microsoft","name":"Windows Server 2025","platforms":["x64-based Systems"],"versions":[{"version":"10.0.26100.0","status":"affected","lessThan":"10.0.26100.33438","versionType":"custom"}],"cpes":[],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-69821"},{"vendor":"Microsoft","name":"Windows Server 2025 (Server Core installation)","platforms":["x64-based Systems"],"versions":[{"version":"10.0.26100.0","status":"affected","lessThan":"10.0.26100.33438","versionType":"custom"}],"cpes":[],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-69821"}],"remediation":[],"references":["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69821"],"sources":[{"name":"CVE","id":"CVE-2026-69821","modified":"2026-10-30T21:54:35.894Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-69821"}],"assessments":[{"source":"microsoft","vector":"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","score":7.8}],"sourceAffected":[],"observedAt":"2026-10-30T22:54:21.149Z","kev":{"status":"not-listed","checkedAt":"2026-10-31T09:45:32.074Z"},"coverage":[{"source":"NVD","status":"available","checkedAt":"2026-10-31T09:10:32.982Z","attemptedAt":"2026-10-31T09:10:32.982Z"},{"source":"GHSA","status":"available","checkedAt":"2026-10-31T09:10:33.349Z","attemptedAt":"2026-10-31T09:10:33.349Z"},{"source":"EUVD","status":"available","checkedAt":"2026-10-31T09:10:32.918Z","attemptedAt":"2026-10-31T09:10:32.918Z"},{"source":"EPSS","status":"available","checkedAt":"2026-10-31T09:10:33.211Z","attemptedAt":"2026-10-31T09:10:33.211Z"}],"evidence":[{"source":"ENISA EUVD","id":"EUVD-2026-73569","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-73569","modified":"Oct 30, 2026, 9:54:35 PM","score":7.8,"vector":"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","checkedAt":"2026-10-31T09:10:32.918Z"},{"source":"NVD","id":"CVE-2026-69821","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-69821","modified":"2026-09-24T23:18:31.080","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","checkedAt":"2026-10-31T09:10:32.982Z"},{"source":"FIRST EPSS","id":"CVE-2026-69821","url":"https://www.first.org/epss/","probability":0.00333,"percentile":0.26643,"date":"2026-10-30","checkedAt":"2026-10-31T09:10:33.211Z"},{"source":"GitHub Advisory Database","id":"GHSA-3m3q-63xj-gjcr","url":"https://github.com/advisories/GHSA-3m3q-63xj-gjcr","modified":"2026-09-08T18:33:11Z","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","checkedAt":"2026-10-31T09:10:33.349Z"}],"aiSummary":{"text":"An elevation of privilege vulnerability in Active Directory Certificate Services (AD CS) affects various Microsoft Windows versions, including Windows 10 and Windows Server 2012 to 2025, due to improper encoding or escaping of output, allowing an authorized attacker to elevate privileges locally. The vulnerability is identified as CWE-116. Affected versions are listed, with specific version ranges for each product.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-10-31T01:56:14.868Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-69821"}]}}