{"id":"CVE-2026-119952","aliases":["EUVD-2026-122446","GHSA-9qh3-c9gp-f2h8"],"status":"published","title":"Windows Schannel Remote Code Execution Vulnerability","description":"Observable timing discrepancy in Windows Schannel allows an unauthorized attacker to execute code over a network.","severity":{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-208"],"published":"2026-11-10T18:23:41Z","modified":"2026-11-10T21:33:46Z","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-2026-119952","tags":["vendor-advisory","patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-119952"},{"url":"https://github.com/advisories/GHSA-9qh3-c9gp-f2h8"}],"sources":{"cve":[{"id":"CVE-2026-119952","title":"Windows Schannel Remote Code Execution Vulnerability","description":"Observable timing discrepancy in Windows Schannel allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-11-10T18:23:41.678Z","modified":"2026-11-10T19:43:57.189Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-208"],"updated_at":"2026-11-10T19:39:58.973959Z"}],"euvd":[{"id":"EUVD-2026-122446","description":"Observable timing discrepancy in Windows Schannel allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-11-10T18:23:41Z","modified":"2026-11-10T19:43:57Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-10T19:22:07.605308Z"}],"ghsa":[{"id":"GHSA-9qh3-c9gp-f2h8","title":"Observable timing discrepancy in Windows Schannel allows an unauthorized attacker to execute code...","description":"Observable timing discrepancy in Windows Schannel allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-11-10T21:33:38Z","modified":"2026-11-10T21:33:46Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-208"],"updated_at":"2026-11-10T21:57:54.561479Z"}],"nvd":[{"id":"CVE-2026-119952","description":"Observable timing discrepancy in Windows Schannel allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-11-10T19:20:18.867Z","modified":"2026-11-10T19:20:18.983Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-208"],"updated_at":"2026-11-10T22:21:33.392456Z"}]}}