{"id":"CVE-2023-21755","aliases":["EUVD-2023-25922","GHSA-mf4h-3w62-2q52"],"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":"2026-11-10","score":0.00522,"percentile":0.44607,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-269","CWE-416"],"published":"2023-01-10T00:00:00Z","modified":"2026-06-17T05:33:53Z","products":[{"vendor":"microsoft","product":"windows 10 version 1809"},{"vendor":"microsoft","product":"windows 10 version 20h2"},{"vendor":"microsoft","product":"windows 10 version 21h2"},{"vendor":"microsoft","product":"windows 10 version 22h2"},{"vendor":"microsoft","product":"windows 11 version 21h2"},{"vendor":"microsoft","product":"windows 11 version 22h2"},{"vendor":"microsoft","product":"windows_10_1607"},{"vendor":"microsoft","product":"windows_10_1809"},{"vendor":"microsoft","product":"windows_10_20h2"},{"vendor":"microsoft","product":"windows_10_21h2"},{"vendor":"microsoft","product":"windows_10_22h2"},{"vendor":"microsoft","product":"windows_11_21h2"},{"vendor":"microsoft","product":"windows_11_22h2"},{"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"},{"vendor":"microsoft","product":"windows_server_2016"},{"vendor":"microsoft","product":"windows_server_2019"},{"vendor":"microsoft","product":"windows_server_2022"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21755","tags":["vendor-advisory","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-21755"},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-21755"},{"url":"https://github.com/advisories/GHSA-mf4h-3w62-2q52"}],"sources":{"cve":[{"id":"CVE-2023-21755","title":"Windows Kernel Elevation of Privilege Vulnerability","description":"Windows Kernel Elevation of Privilege Vulnerability","status":"published","published":"2023-01-10T00:00:00Z","modified":"2025-01-01T00:36:02.866Z","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"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:35:20.368244Z"}],"euvd":[{"id":"EUVD-2023-25922","description":"Windows Kernel Elevation of Privilege Vulnerability","status":"published","published":"2023-01-10T00:00:00Z","modified":"2025-01-01T00:36:02Z","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":"2026-11-03T00:04:31.291576Z"}],"ghsa":[{"id":"GHSA-mf4h-3w62-2q52","title":"Windows Kernel Elevation of Privilege Vulnerability. This CVE ID is unique from CVE-2023-21675,...","description":"Windows Kernel Elevation of Privilege Vulnerability. This CVE ID is unique from CVE-2023-21675, CVE-2023-21747, CVE-2023-21748, CVE-2023-21749, CVE-2023-21750, CVE-2023-21754, CVE-2023-21772, CVE-2023-21773, CVE-2023-21774.","status":"published","published":"2023-01-11T00:30:46Z","modified":"2023-05-06T05:00:42Z","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":"2026-11-02T14:54:35.04449Z"}],"nvd":[{"id":"CVE-2023-21755","description":"Windows Kernel Elevation of Privilege Vulnerability","status":"published","published":"2023-01-10T22:15:18.613Z","modified":"2026-06-17T05:33:53.707Z","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"}],"cwes":["CWE-416","CWE-269"],"updated_at":"2026-11-02T14:07:45.305824Z"}]}}