{"id":"CVE-2022-21921","aliases":["EUVD-2022-27077","GHSA-q528-27xh-7wmw"],"status":"published","title":"Windows Defender Credential Guard Security Feature Bypass Vulnerability","description":"Windows Defender Credential Guard Security Feature Bypass Vulnerability","severity":{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00922,"percentile":0.60757,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2022-01-11T20:23:20Z","modified":"2026-06-17T04:27:17Z","products":[{"vendor":"microsoft","product":"windows 10 version 20h2"},{"vendor":"microsoft","product":"windows 10 version 21h1"},{"vendor":"microsoft","product":"windows 10 version 21h2"},{"vendor":"microsoft","product":"windows 11 version 21h2"},{"vendor":"microsoft","product":"windows server 2022"},{"vendor":"microsoft","product":"windows server version 20h2"},{"vendor":"microsoft","product":"windows_10"},{"vendor":"microsoft","product":"windows_11"},{"vendor":"microsoft","product":"windows_server"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-21921","tags":["vendor-advisory"]},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-21921","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-21921"},{"url":"https://github.com/advisories/GHSA-q528-27xh-7wmw"}],"sources":{"cve":[{"id":"CVE-2022-21921","title":"Windows Defender Credential Guard Security Feature Bypass Vulnerability","description":"Windows Defender Credential Guard Security Feature Bypass Vulnerability","status":"published","published":"2022-01-11T20:23:20Z","modified":"2025-01-02T18:22:38.965Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:34:29.057251Z"}],"euvd":[{"id":"EUVD-2022-27077","description":"Windows Defender Credential Guard Security Feature Bypass Vulnerability","status":"published","published":"2022-01-11T20:23:20Z","modified":"2025-01-02T18:22:38Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","level":"medium"}],"updated_at":"2026-11-03T00:04:29.532536Z"}],"ghsa":[{"id":"GHSA-q528-27xh-7wmw","title":"Windows Defender Credential Guard Security Feature Bypass Vulnerability.","description":"Windows Defender Credential Guard Security Feature Bypass Vulnerability.","status":"published","published":"2022-01-12T00:00:30Z","modified":"2024-11-14T21:32:57Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T14:58:50.830346Z"}],"nvd":[{"id":"CVE-2022-21921","description":"Windows Defender Credential Guard Security Feature Bypass Vulnerability","status":"published","published":"2022-01-11T21:15:13.567Z","modified":"2026-06-17T04:27:17.343Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"2.0","score":4.9,"vector":"AV:L/AC:L/Au:N/C:C/I:N/A:N","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:07:10.836864Z"}]}}