{"id":"CVE-2022-21899","aliases":["EUVD-2022-27055","GHSA-67j8-976x-9cmm"],"status":"published","title":"Windows Extensible Firmware Interface Security Feature Bypass Vulnerability","description":"Windows Extensible Firmware Interface Security Feature Bypass Vulnerability","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.01464,"percentile":0.73831,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-863"],"published":"2022-01-11T20:23:02Z","modified":"2026-06-17T04:27:13Z","products":[{"vendor":"microsoft","product":"windows 10 version 1507"},{"vendor":"microsoft","product":"windows 7"},{"vendor":"microsoft","product":"windows 7 service pack 1"},{"vendor":"microsoft","product":"windows 8.1"},{"vendor":"microsoft","product":"windows server 2008 r2 service pack 1"},{"vendor":"microsoft","product":"windows server 2008 r2 service pack 1 (server core installation)"},{"vendor":"microsoft","product":"windows server 2012"},{"vendor":"microsoft","product":"windows server 2012 (server core installation)"},{"vendor":"microsoft","product":"windows server 2012 r2"},{"vendor":"microsoft","product":"windows server 2012 r2 (server core installation)"},{"vendor":"microsoft","product":"windows_10"},{"vendor":"microsoft","product":"windows_7"},{"vendor":"microsoft","product":"windows_8.1"},{"vendor":"microsoft","product":"windows_rt_8.1"},{"vendor":"microsoft","product":"windows_server_2008"},{"vendor":"microsoft","product":"windows_server_2012"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-21899","tags":["vendor-advisory"]},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-21899","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-22-052/","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-21899"},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-22-052"},{"url":"https://github.com/advisories/GHSA-67j8-976x-9cmm"}],"sources":{"cve":[{"id":"CVE-2022-21899","title":"Windows Extensible Firmware Interface Security Feature Bypass Vulnerability","description":"Windows Extensible Firmware Interface Security Feature Bypass Vulnerability","status":"published","published":"2022-01-11T20:23:02Z","modified":"2025-01-02T18:23:03.872Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:34:29.057251Z"}],"euvd":[{"id":"EUVD-2022-27055","description":"Windows Extensible Firmware Interface Security Feature Bypass Vulnerability","status":"published","published":"2022-01-11T20:23:02Z","modified":"2025-01-02T18:23:03Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C","level":"medium"}],"updated_at":"2026-11-03T00:04:29.532536Z"}],"ghsa":[{"id":"GHSA-67j8-976x-9cmm","title":"Windows Extensible Firmware Interface Security Feature Bypass Vulnerability.","description":"Windows Extensible Firmware Interface Security Feature Bypass Vulnerability.","status":"published","published":"2022-01-12T00:00:44Z","modified":"2024-11-14T21:31:50Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:58:50.242407Z"}],"nvd":[{"id":"CVE-2022-21899","description":"Windows Extensible Firmware Interface Security Feature Bypass Vulnerability","status":"published","published":"2022-01-11T21:15:12.413Z","modified":"2026-06-17T04:27:13.83Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"},{"version":"2.0","score":4.9,"vector":"AV:L/AC:L/Au:N/C:N/I:N/A:C","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:07:10.836864Z"}]}}