{"id":"CVE-2026-112966","aliases":["EUVD-2026-121890","GHSA-q48f-w9rv-cm2x"],"status":"published","title":"Windows Security Account Manager Denial of Service Vulnerability","description":"Uncontrolled resource consumption in Windows Security Account Manager allows an unauthorized attacker to deny service over a network.","severity":{"version":"3.1","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","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-14","score":0.012,"percentile":0.68676,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-407"],"published":"2026-11-10T18:18:25Z","modified":"2026-11-10T21:32:49Z","products":[{"vendor":"microsoft","product":"windows 10 version 1607"},{"vendor":"microsoft","product":"windows 10 version 1809"},{"vendor":"microsoft","product":"windows 10 version 21h2"},{"vendor":"microsoft","product":"windows 10 version 22h2"},{"vendor":"microsoft","product":"windows 11 version 23h2"},{"vendor":"microsoft","product":"windows 11 version 24h2"},{"vendor":"microsoft","product":"windows 11 version 25h2"},{"vendor":"microsoft","product":"windows 11 version 26h1"},{"vendor":"microsoft","product":"windows 11 version 26h2"},{"vendor":"microsoft","product":"windows server 2016"},{"vendor":"microsoft","product":"windows server 2016 (server core installation)"},{"vendor":"microsoft","product":"windows server 2019"},{"vendor":"microsoft","product":"windows server 2019 (server core installation)"},{"vendor":"microsoft","product":"windows server 2022"},{"vendor":"microsoft","product":"windows server 2025"},{"vendor":"microsoft","product":"windows server 2025 (server core installation)"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-112966","tags":["vendor-advisory","patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-112966"},{"url":"https://github.com/advisories/GHSA-q48f-w9rv-cm2x"}],"sources":{"cve":[{"id":"CVE-2026-112966","title":"Windows Security Account Manager Denial of Service Vulnerability","description":"Uncontrolled resource consumption in Windows Security Account Manager allows an unauthorized attacker to deny service over a network.","status":"published","published":"2026-11-10T18:18:25.552Z","modified":"2026-11-13T18:07:17.615Z","cvss":[{"version":"3.1","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","level":"high","assessor":"cna"}],"cwes":["CWE-407"],"updated_at":"2026-11-10T19:39:58.44836Z"}],"euvd":[{"id":"EUVD-2026-121890","description":"Uncontrolled resource consumption in Windows Security Account Manager allows an unauthorized attacker to deny service over a network.","status":"published","published":"2026-11-10T18:18:25Z","modified":"2026-11-13T18:07:17Z","cvss":[{"version":"3.1","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","level":"high"}],"updated_at":"2026-11-10T23:24:32.395185Z"}],"ghsa":[{"id":"GHSA-q48f-w9rv-cm2x","title":"Uncontrolled resource consumption in Windows Security Account Manager allows an unauthorized...","description":"Uncontrolled resource consumption in Windows Security Account Manager allows an unauthorized attacker to deny service over a network.","status":"published","published":"2026-11-10T21:32:43Z","modified":"2026-11-10T21:32:49Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-407"],"updated_at":"2026-11-10T21:57:50.285633Z"}],"nvd":[{"id":"CVE-2026-112966","description":"Uncontrolled resource consumption in Windows Security Account Manager allows an unauthorized attacker to deny service over a network.","status":"published","published":"2026-11-10T19:18:46.743Z","modified":"2026-11-10T21:18:37.953Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-407"],"updated_at":"2026-11-11T00:21:54.23974Z"}]}}