{"id":"CVE-2023-21748","aliases":["EUVD-2023-25915","GHSA-6m45-hp34-m9mw"],"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":0.00873,"percentile":0.59216,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2023-01-10T00:00:00Z","modified":"2026-11-03T21:52:30Z","products":[{"vendor":"microsoft","product":"windows 10 version 1507"},{"vendor":"microsoft","product":"windows 10 version 1607"},{"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 7"},{"vendor":"microsoft","product":"windows 7 service pack 1"},{"vendor":"microsoft","product":"windows 8.1"},{"vendor":"microsoft","product":"windows server 2008  service pack 2"},{"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 2008 service pack 2"},{"vendor":"microsoft","product":"windows server 2008 service pack 2 (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 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_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-2023-21748","tags":["vendor-advisory","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-21748"},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-21748"},{"url":"http://packetstormsecurity.com/files/170946/Windows-Kernel-Key-Replication-Issues.html"},{"url":"http://packetstormsecurity.com/files/170949/Windows-Kernel-Registry-Virtualization-Incompatibility.html"},{"url":"https://github.com/advisories/GHSA-6m45-hp34-m9mw"}],"sources":{"cve":[{"id":"CVE-2023-21748","title":"Windows Kernel Elevation of Privilege Vulnerability","description":"Windows Kernel Elevation of Privilege Vulnerability","status":"published","published":"2023-01-10T00:00:00Z","modified":"2026-11-03T23:50:14.541Z","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":"2026-11-04T00:47:47.540303Z"}],"euvd":[{"id":"EUVD-2023-25915","description":"Windows Kernel Elevation of Privilege Vulnerability","status":"published","published":"2023-01-10T00:00:00Z","modified":"2026-11-03T21:52:30Z","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":"2026-11-03T23:01:35.931968Z"}],"ghsa":[{"id":"GHSA-6m45-hp34-m9mw","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-2023-21749, CVE-2023-21750, CVE-2023-21754, CVE-2023-21755, CVE-2023-21772, CVE-2023-21773, CVE-2023-21774.","status":"published","published":"2023-01-11T00:30:46Z","modified":"2023-04-27T21:30:23Z","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"}],"updated_at":"2026-11-02T14:54:33.975596Z"}],"nvd":[{"id":"CVE-2023-21748","description":"Windows Kernel Elevation of Privilege Vulnerability","status":"published","published":"2023-01-10T22:15:18.24Z","modified":"2026-11-03T22:17:11.723Z","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"}],"updated_at":"2026-11-04T00:47:54.173626Z"}]}}