{"id":"CVE-2026-122164","aliases":["EUVD-2026-122487","GHSA-jv5p-rp3m-m632"],"status":"published","title":"Windows Kerberos Elevation of Privilege Vulnerability","description":"Weak authentication in Windows Kerberos allows an authorized attacker to elevate privileges over a network.","severity":{"version":"3.1","score":8,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00637,"percentile":0.50995,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-1390"],"published":"2026-11-10T18:24:03Z","modified":"2026-11-10T21:33:48Z","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-2026-122164","tags":["vendor-advisory","patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-122164"},{"url":"https://github.com/advisories/GHSA-jv5p-rp3m-m632"}],"sources":{"cve":[{"id":"CVE-2026-122164","title":"Windows Kerberos Elevation of Privilege Vulnerability","description":"Weak authentication in Windows Kerberos allows an authorized attacker to elevate privileges over a network.","status":"published","published":"2026-11-10T18:24:03.492Z","modified":"2026-11-11T17:19:39.075Z","cvss":[{"version":"3.1","score":8,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-1390"],"updated_at":"2026-11-10T19:39:58.973959Z"}],"euvd":[{"id":"EUVD-2026-122487","description":"Weak authentication in Windows Kerberos allows an authorized attacker to elevate privileges over a network.","status":"published","published":"2026-11-10T18:24:03Z","modified":"2026-11-11T17:19:39Z","cvss":[{"version":"3.1","score":8,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-11T00:25:03.169314Z"}],"ghsa":[{"id":"GHSA-jv5p-rp3m-m632","title":"Weak authentication in Windows Kerberos allows an authorized attacker to elevate privileges over...","description":"Weak authentication in Windows Kerberos allows an authorized attacker to elevate privileges over a network.","status":"published","published":"2026-11-10T21:33:45Z","modified":"2026-11-10T21:33:48Z","cvss":[{"version":"3.1","score":8,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-1390"],"updated_at":"2026-11-10T21:57:54.561479Z"}],"nvd":[{"id":"CVE-2026-122164","description":"Weak authentication in Windows Kerberos allows an authorized attacker to elevate privileges over a network.","status":"published","published":"2026-11-10T19:20:33.153Z","modified":"2026-11-11T15:17:17.22Z","cvss":[{"version":"3.1","score":8,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-1390"],"updated_at":"2026-11-11T17:25:38.19312Z"}]}}