{"id":"CVE-2026-49167","aliases":["EUVD-2026-43979","GHSA-qr4j-65qh-7738"],"status":"published","title":"Windows Kernel Elevation of Privilege Vulnerability","description":"Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.","severity":{"version":"3.1","score":4.7,"vector":"CVSS:3.1/AV:L/AC:H/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":"2026-11-10","score":0.0035,"percentile":0.28967,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-416"],"published":"2026-07-14T17:04:27Z","modified":"2026-11-01T17:32:15Z","products":[{"vendor":"microsoft","product":"windows 10 version 1809"},{"vendor":"microsoft","product":"windows 10 version 21h2"},{"vendor":"microsoft","product":"windows 10 version 22h2"},{"vendor":"microsoft","product":"windows 11 version 24h2"},{"vendor":"microsoft","product":"windows 11 version 25h2"},{"vendor":"microsoft","product":"windows 11 version 26h1"},{"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 server 2025"},{"vendor":"microsoft","product":"windows server 2025 (server core installation)"},{"vendor":"microsoft","product":"windows_10_1809"},{"vendor":"microsoft","product":"windows_10_21h2"},{"vendor":"microsoft","product":"windows_10_22h2"},{"vendor":"microsoft","product":"windows_11_24h2"},{"vendor":"microsoft","product":"windows_11_25h2"},{"vendor":"microsoft","product":"windows_11_26h1"},{"vendor":"microsoft","product":"windows_server_2019"},{"vendor":"microsoft","product":"windows_server_2022"},{"vendor":"microsoft","product":"windows_server_2025"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-49167","tags":["vendor-advisory","patch","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-49167"},{"url":"https://github.com/advisories/GHSA-qr4j-65qh-7738"}],"sources":{"cve":[{"id":"CVE-2026-49167","title":"Windows Kernel Elevation of Privilege Vulnerability","description":"Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-07-14T17:04:27.881Z","modified":"2026-11-01T17:32:15.606Z","cvss":[{"version":"3.1","score":4.7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C","level":"medium","assessor":"cna"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T13:35:10.963527Z"}],"euvd":[{"id":"EUVD-2026-43979","description":"Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-07-14T17:04:27Z","modified":"2026-11-01T17:32:15Z","cvss":[{"version":"3.1","score":4.7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C","level":"medium"}],"updated_at":"2026-11-02T16:58:49.629727Z"}],"ghsa":[{"id":"GHSA-qr4j-65qh-7738","title":"Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.","description":"Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-07-14T18:32:00Z","modified":"2026-07-14T18:32:06Z","cvss":[{"version":"3.1","score":4.7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T15:09:28.277582Z"}],"nvd":[{"id":"CVE-2026-49167","description":"Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-07-14T17:16:51.493Z","modified":"2026-07-22T16:17:27.447Z","cvss":[{"version":"3.1","score":4.7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","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":"primary"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:12:29.114188Z"}]}}