{"id":"CVE-2026-122167","aliases":["EUVD-2026-122490","GHSA-mcwf-4cw6-2qcj"],"status":"published","title":"Windows USB Driver Elevation of Privilege Vulnerability","description":"Heap-based buffer overflow in Windows USB Driver allows an unauthorized attacker to elevate privileges with a physical attack.","severity":{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00509,"percentile":0.43933,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-122"],"published":"2026-11-10T18:24:05Z","modified":"2026-11-10T21:33:48Z","products":[{"vendor":"microsoft","product":"windows 10 version 1607"},{"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 23h2"},{"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 11 version 26h2"},{"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 server 2025"},{"vendor":"microsoft","product":"windows server 2025 (server core installation)"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-122167","tags":["vendor-advisory","patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-122167"},{"url":"https://github.com/advisories/GHSA-mcwf-4cw6-2qcj"}],"sources":{"cve":[{"id":"CVE-2026-122167","title":"Windows USB Driver Elevation of Privilege Vulnerability","description":"Heap-based buffer overflow in Windows USB Driver allows an unauthorized attacker to elevate privileges with a physical attack.","status":"published","published":"2026-11-10T18:24:05.039Z","modified":"2026-11-11T17:19:40.703Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"medium","assessor":"cna"}],"cwes":["CWE-122"],"updated_at":"2026-11-10T19:39:58.973959Z"}],"euvd":[{"id":"EUVD-2026-122490","description":"Heap-based buffer overflow in Windows USB Driver allows an unauthorized attacker to elevate privileges with a physical attack.","status":"published","published":"2026-11-10T18:24:05Z","modified":"2026-11-11T17:19:40Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"medium"}],"updated_at":"2026-11-11T00:25:03.169314Z"}],"ghsa":[{"id":"GHSA-mcwf-4cw6-2qcj","title":"Heap-based buffer overflow in Windows USB Driver allows an unauthorized attacker to elevate...","description":"Heap-based buffer overflow in Windows USB Driver allows an unauthorized attacker to elevate privileges with a physical attack.","status":"published","published":"2026-11-10T21:33:46Z","modified":"2026-11-10T21:33:48Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"medium"}],"cwes":["CWE-122"],"updated_at":"2026-11-10T21:57:54.561479Z"}],"nvd":[{"id":"CVE-2026-122167","description":"Heap-based buffer overflow in Windows USB Driver allows an unauthorized attacker to elevate privileges with a physical attack.","status":"published","published":"2026-11-10T19:20:33.723Z","modified":"2026-11-11T02:17:11.647Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-122"],"updated_at":"2026-11-11T07:23:51.286099Z"}]}}