{"id":"CVE-2026-69490","aliases":["EUVD-2026-73699","GHSA-fjg5-3mv2-jjvp"],"status":"published","title":"Windows USB Mass Storage Class Driver Elevation of Privilege Vulnerability","description":"Out-of-bounds read in Windows USB Mass Storage Class 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":0.00438,"percentile":0.3852,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-125"],"published":"2026-09-08T17:17:23Z","modified":"2026-11-10T21:36:27Z","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 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 2025"},{"vendor":"microsoft","product":"windows server 2025 (server core installation)"},{"vendor":"microsoft","product":"windows_10_1607"},{"vendor":"microsoft","product":"windows_10_1809"},{"vendor":"microsoft","product":"windows_10_21h2"},{"vendor":"microsoft","product":"windows_10_22h2"},{"vendor":"microsoft","product":"windows_11_23h2"},{"vendor":"microsoft","product":"windows_11_24h2"},{"vendor":"microsoft","product":"windows_11_25h2"},{"vendor":"microsoft","product":"windows_11_26h1"},{"vendor":"microsoft","product":"windows_server_2012"},{"vendor":"microsoft","product":"windows_server_2016"},{"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-2026-69490","tags":["vendor-advisory","patch","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-69490"},{"url":"https://github.com/advisories/GHSA-fjg5-3mv2-jjvp"}],"sources":{"cve":[{"id":"CVE-2026-69490","title":"Windows USB Mass Storage Class Driver Elevation of Privilege Vulnerability","description":"Out-of-bounds read in Windows USB Mass Storage Class Driver allows an unauthorized attacker to elevate privileges with a physical attack.","status":"published","published":"2026-09-08T17:17:23.773Z","modified":"2026-11-10T21:36:27.07Z","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-125"],"updated_at":"2026-11-10T22:48:53.006191Z"}],"euvd":[{"id":"EUVD-2026-73699","description":"Out-of-bounds read in Windows USB Mass Storage Class Driver allows an unauthorized attacker to elevate privileges with a physical attack.","status":"published","published":"2026-09-08T17:17:23Z","modified":"2026-11-10T21:36:27Z","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":"2026-11-10T22:23:47.576985Z"}],"ghsa":[{"id":"GHSA-fjg5-3mv2-jjvp","title":"Out-of-bounds read in Windows USB Mass Storage Class Driver allows an unauthorized attacker to...","description":"Out-of-bounds read in Windows USB Mass Storage Class Driver allows an unauthorized attacker to elevate privileges with a physical attack.","status":"published","published":"2026-09-08T18:32:40Z","modified":"2026-09-08T18:32:47Z","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-125"],"updated_at":"2026-11-02T15:11:31.116638Z"}],"nvd":[{"id":"CVE-2026-69490","description":"Out-of-bounds read in Windows USB Mass Storage Class Driver allows an unauthorized attacker to elevate privileges with a physical attack.","status":"published","published":"2026-09-08T18:19:15.177Z","modified":"2026-09-24T23:17:57.887Z","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-125"],"updated_at":"2026-11-02T14:12:44.840742Z"}]}}