{"id":"CVE-2026-54119","aliases":[],"cve":{"records":[{"id":"CVE-2026-54119","source":"microsoft","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-06-11T20:33:37.836Z","published":"2026-07-14T17:04:54.247Z","modified":"2026-10-28T20:01:35.117Z"}],"publishers":[{"name":"microsoft","role":"CNA","organizationId":"f38d906d-7342-40ea-92c1-6c4a2c6478c8","modified":"2026-10-28T20:01:35.117Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-07-14T20:48:12.169Z"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54119","tags":["vendor-advisory","patch"],"source":"microsoft"}],"weaknesses":[{"id":"CWE-835","description":"CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')","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":"10.0.17763.9020"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*","versionStartIncluding":"10.0.17763.0","versionEndExcluding":"10.0.17763.9020"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*","versionStartIncluding":"10.0.17763.0","versionEndExcluding":"10.0.17763.9020"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*","versionStartIncluding":"10.0.20348.0","versionEndExcluding":"10.0.20348.5386"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_10_21H2:*:*:*:*:*:*:x86:*","versionStartIncluding":"10.0.19044.0","versionEndExcluding":"10.0.19044.7548"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_10_22H2:*:*:*:*:*:*:x64:*","versionStartIncluding":"10.0.19045.0","versionEndExcluding":"10.0.19045.7548"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*","versionStartIncluding":"10.0.26100.0","versionEndExcluding":"10.0.26100.33158"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_11_25H2:*:*:*:*:*:*:arm64:*","versionStartIncluding":"10.0.26200.0","versionEndExcluding":"10.0.26200.8875"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_11_24H2:*:*:*:*:*:*:arm64:*","versionStartIncluding":"10.0.26100.0","versionEndExcluding":"10.0.26100.8875"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*","versionStartIncluding":"10.0.26100.0","versionEndExcluding":"10.0.26100.33158"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_11_26H1:*:*:*:*:*:*:x64:*","versionStartIncluding":"10.0.28000.0","versionEndExcluding":"10.0.28000.2525"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*","versionStartIncluding":"10.0.14393.0","versionEndExcluding":"10.0.14393.9339"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*","versionStartIncluding":"10.0.14393.0","versionEndExcluding":"10.0.14393.9339"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*","versionStartIncluding":"10.0.14393.0","versionEndExcluding":"10.0.14393.9339"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:x64:*","versionStartIncluding":"6.2.9200.0","versionEndExcluding":"6.2.9200.26226"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:x64:*","versionStartIncluding":"6.2.9200.0","versionEndExcluding":"6.2.9200.26226"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_server_2012_R2:*:*:*:*:*:*:x64:*","versionStartIncluding":"6.3.9600.0","versionEndExcluding":"6.3.9600.23291"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_server_2012_R2:*:*:*:*:*:*:x64:*","versionStartIncluding":"6.3.9600.0","versionEndExcluding":"6.3.9600.23291"}]}]}]}],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-07-14T20:37:50.288596Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"yes"},{"name":"Technical Impact","value":"partial"}]}]},"title":"Windows Active Directory Denial of Service Vulnerability","titleSource":"microsoft","descriptionSource":"microsoft","description":"Loop with unreachable exit condition ('infinite loop') in Windows Active Directory allows an unauthorized attacker to deny service over a network.","score":7.5,"severity":"high","published":"2026-07-14T17:04:54.247Z","modified":"2026-10-28T20:01:35.117Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"Microsoft","name":"Windows 10 Version 1607","platforms":["32-bit Systems","x64-based Systems"],"versions":[{"version":"10.0.14393.0","status":"affected","lessThan":"10.0.14393.9339","versionType":"custom"}],"cpes":[],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-54119"},{"vendor":"Microsoft","name":"Windows 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Systems"],"versions":[{"version":"6.2.9200.0","status":"affected","lessThan":"6.2.9200.26226","versionType":"custom"}],"cpes":[],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-54119"},{"vendor":"Microsoft","name":"Windows Server 2012 (Server Core installation)","platforms":["x64-based Systems"],"versions":[{"version":"6.2.9200.0","status":"affected","lessThan":"6.2.9200.26226","versionType":"custom"}],"cpes":[],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-54119"},{"vendor":"Microsoft","name":"Windows Server 2012 R2","platforms":["x64-based Systems"],"versions":[{"version":"6.3.9600.0","status":"affected","lessThan":"6.3.9600.23291","versionType":"custom"}],"cpes":[],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-54119"},{"vendor":"Microsoft","name":"Windows Server 2012 R2 (Server Core installation)","platforms":["x64-based 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Systems"],"versions":[{"version":"10.0.17763.0","status":"affected","lessThan":"10.0.17763.9020","versionType":"custom"}],"cpes":[],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-54119"},{"vendor":"Microsoft","name":"Windows Server 2019 (Server Core installation)","platforms":["x64-based Systems"],"versions":[{"version":"10.0.17763.0","status":"affected","lessThan":"10.0.17763.9020","versionType":"custom"}],"cpes":[],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-54119"},{"vendor":"Microsoft","name":"Windows Server 2022","platforms":["x64-based Systems"],"versions":[{"version":"10.0.20348.0","status":"affected","lessThan":"10.0.20348.5386","versionType":"custom"}],"cpes":[],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-54119"},{"vendor":"Microsoft","name":"Windows Server 2025","platforms":["x64-based Systems"],"versions":[{"version":"10.0.26100.0","status":"affected","lessThan":"10.0.26100.33158","versionType":"custom"}],"cpes":[],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-54119"},{"vendor":"Microsoft","name":"Windows Server 2025 (Server Core installation)","platforms":["x64-based Systems"],"versions":[{"version":"10.0.26100.0","status":"affected","lessThan":"10.0.26100.33158","versionType":"custom"}],"cpes":[],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-54119"}],"remediation":[],"references":["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54119"],"sources":[{"name":"CVE","id":"CVE-2026-54119","modified":"2026-10-28T20:01:35.117Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-54119"}],"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":"2026-10-29T14:39:33.882Z","kev":{"status":"not-listed","checkedAt":"2026-10-31T08:50:32.230Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[],"aiSummary":{"text":"A loop with an unreachable exit condition in Windows Active Directory allows an unauthorized attacker to deny service over a network, affecting various Windows versions. The vulnerability is due to an infinite loop. Affected versions include Windows 10, Windows 11, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016, Windows Server 2019, Windows Server 2022, and Windows Server 2025.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-10-30T08:42:23.098Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-54119"}]}}