{"id":"CVE-2026-83694","aliases":["EUVD-2026-99332","GHSA-7xhr-xg9m-g942"],"status":"published","title":"Windows Volume Manager Extension Driver Elevation of Privilege Vulnerability","description":"Out-of-bounds read in Windows Volume Manager Extension Driver allows an authorized attacker to elevate privileges locally.","severity":{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/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":"2026-11-11","score":0.00279,"percentile":0.20628,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-125"],"published":"2026-10-13T18:59:49Z","modified":"2026-11-10T20:36:12Z","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 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 server 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Advisory","Patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-83694"},{"url":"https://github.com/advisories/GHSA-7xhr-xg9m-g942"}],"sources":{"cve":[{"id":"CVE-2026-83694","title":"Windows Volume Manager Extension Driver Elevation of Privilege Vulnerability","description":"Out-of-bounds read in Windows Volume Manager Extension Driver allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-10-13T18:59:49.28Z","modified":"2026-11-10T20:36:12.537Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-125"],"updated_at":"2026-11-10T22:18:28.707469Z"}],"euvd":[{"id":"EUVD-2026-99332","description":"Out-of-bounds read in Windows Volume Manager Extension Driver allows an authorized attacker to elevate privileges 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locally.","status":"published","published":"2026-10-13T19:20:12.597Z","modified":"2026-10-29T20:47:35.403Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:12:57.603498Z"}]}}