{"id":"CVE-2026-69809","aliases":[],"cve":{"records":[{"id":"CVE-2026-69809","source":"microsoft","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-08-03T22:50:31.850Z","published":"2026-09-08T17:16:34.042Z","modified":"2026-10-30T21:54:58.044Z"}],"publishers":[{"name":"microsoft","role":"CNA","organizationId":"f38d906d-7342-40ea-92c1-6c4a2c6478c8","modified":"2026-10-30T21:54:58.044Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-09-08T20:47:01.574Z"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69809","tags":["vendor-advisory","patch"],"source":"microsoft"}],"weaknesses":[{"id":"CWE-401","description":"CWE-401: Missing Release of Memory after Effective Lifetime","source":"microsoft"}],"applicability":[{"source":"microsoft","statements":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"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_11_25H2:*:*:*:*:*:*:arm64:*","versionStartIncluding":"10.0.26200.0","versionEndExcluding":"10.0.26200.9445"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_11_23H2:*:*:*:*:*:*:arm64:*","versionStartIncluding":"10.0.22631.0","versionEndExcluding":"10.0.22631.7582"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_11_23H2:*:*:*:*:*:*:x64:*","versionStartIncluding":"10.0.22631.0","versionEndExcluding":"10.0.22631.7582"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_11_24H2:*:*:*:*:*:*:arm64:*","versionStartIncluding":"10.0.26100.0","versionEndExcluding":"10.0.26100.9445"},{"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_11_26H1:*:*:*:*:*:*:x64:*","versionStartIncluding":"10.0.28000.0","versionEndExcluding":"10.0.28000.2954"}]}]}]}],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-09-08T20:39:51.183109Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"yes"},{"name":"Technical Impact","value":"partial"}]}]},"title":"Windows Active Directory Domain Services Denial of Service Vulnerability","titleSource":"microsoft","descriptionSource":"microsoft","description":"Missing release of memory after effective lifetime in Active Directory Domain Services allows an unauthorized attacker to deny service over a network.","score":7.5,"severity":"high","published":"2026-09-08T17:16:34.042Z","modified":"2026-10-30T21:54:58.044Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"Microsoft","name":"Windows 11 version 23H2","platforms":["ARM64-based 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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-2026-69809"}],"remediation":[],"references":["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69809"],"sources":[{"name":"CVE","id":"CVE-2026-69809","modified":"2026-10-30T21:54:58.044Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-69809"}],"assessments":[{"source":"microsoft","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C","score":7.5}],"sourceAffected":[],"observedAt":"2026-10-30T22:54:10.498Z","kev":{"status":"not-listed","checkedAt":"2026-10-31T13:55:32.867Z"},"coverage":[{"source":"NVD","status":"available","checkedAt":"2026-10-31T08:25:30.932Z","attemptedAt":"2026-10-31T08:25:30.932Z"},{"source":"GHSA","status":"available","checkedAt":"2026-10-31T08:25:30.932Z","attemptedAt":"2026-10-31T08:25:30.932Z"},{"source":"EUVD","status":"available","checkedAt":"2026-10-31T08:25:30.932Z","attemptedAt":"2026-10-31T08:25:30.932Z"},{"source":"EPSS","status":"available","checkedAt":"2026-10-31T08:25:30.932Z","attemptedAt":"2026-10-31T08:25:30.932Z"}],"evidence":[{"source":"ENISA EUVD","id":"EUVD-2026-73609","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-73609","modified":"Oct 30, 2026, 9:54:58 PM","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C","checkedAt":"2026-10-31T08:25:30.932Z"},{"source":"GitHub Advisory Database","id":"GHSA-6x59-3qf7-4cx8","url":"https://github.com/advisories/GHSA-6x59-3qf7-4cx8","modified":"2026-09-08T18:33:10Z","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","checkedAt":"2026-10-31T08:25:30.932Z"},{"source":"FIRST EPSS","id":"CVE-2026-69809","url":"https://www.first.org/epss/","probability":0.01174,"percentile":0.67493,"date":"2026-10-30","checkedAt":"2026-10-31T08:25:30.932Z"},{"source":"NVD","id":"CVE-2026-69809","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-69809","modified":"2026-09-24T19:12:06.440","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","checkedAt":"2026-10-31T08:25:30.932Z"}],"aiSummary":{"text":"A denial of service vulnerability in Windows Active Directory Domain Services affects Windows 11 and Windows Server versions due to missing memory release. An unauthorized attacker can exploit this over a network.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-10-31T01:46:13.073Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-69809"}]}}