{"id":"CVE-2021-38626","aliases":["EUVD-2021-25065","GHSA-pchq-9x38-f924"],"status":"published","title":"Windows Kernel Elevation of Privilege Vulnerability","description":"Windows Kernel Elevation of Privilege Vulnerability","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00527,"percentile":0.45162,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-269"],"published":"2021-09-15T11:23:50Z","modified":"2026-08-10T18:32:07Z","products":[{"vendor":"microsoft","product":"windows server 2008 service pack 2"},{"vendor":"microsoft","product":"windows server 2008 service pack 2 (server core installation)"},{"vendor":"microsoft","product":"windows_server_2008"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-38626","tags":["vendor-advisory","patch"]},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-38626","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-38626"},{"url":"https://github.com/advisories/GHSA-pchq-9x38-f924"}],"sources":{"cve":[{"id":"CVE-2021-38626","title":"Windows Kernel Elevation of Privilege Vulnerability","description":"Windows Kernel Elevation of Privilege Vulnerability","status":"published","published":"2021-09-15T11:23:50Z","modified":"2026-08-10T15:10:46.755Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"updated_at":"2026-11-02T14:33:07.349244Z"}],"euvd":[{"id":"EUVD-2021-25065","description":"Windows Kernel Elevation of Privilege Vulnerability","status":"published","published":"2021-09-15T11:23:50Z","modified":"2026-08-10T15:10:46Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-02T18:02:05.005873Z"}],"ghsa":[{"id":"GHSA-pchq-9x38-f924","title":"Windows Kernel Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021-38625.","description":"Windows Kernel Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021-38625.","status":"published","published":"2022-05-24T19:14:44Z","modified":"2026-08-10T18:32:07Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-269"],"updated_at":"2026-11-02T15:10:15.270288Z"}],"nvd":[{"id":"CVE-2021-38626","description":"Windows Kernel Elevation of Privilege Vulnerability","status":"published","published":"2021-09-15T12:15:14.197Z","modified":"2026-08-10T16:18:06.94Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"2.0","score":4.6,"vector":"AV:L/AC:L/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-269"],"updated_at":"2026-11-02T14:06:58.502206Z"}]}}