{"id":"CVE-2026-69503","aliases":["EUVD-2026-73528","GHSA-7698-84hm-gqc4"],"status":"published","title":"Windows USB Driver Elevation of Privilege Vulnerability","description":"Stack-based buffer overflow in Windows USB Driver allows an authorized attacker to elevate privileges over a network.","severity":{"version":"3.1","score":8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/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":0.00768,"percentile":0.56003,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-121"],"published":"2026-09-08T17:15:50Z","modified":"2026-11-10T21:34:49Z","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 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 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_23h2"},{"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-2026-69503","tags":["vendor-advisory","patch","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-69503"},{"url":"https://github.com/advisories/GHSA-7698-84hm-gqc4"}],"sources":{"cve":[{"id":"CVE-2026-69503","title":"Windows USB Driver Elevation of Privilege Vulnerability","description":"Stack-based buffer overflow in Windows USB Driver allows an authorized attacker to elevate privileges over a network.","status":"published","published":"2026-09-08T17:15:50.547Z","modified":"2026-11-10T21:34:49.931Z","cvss":[{"version":"3.1","score":8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-121"],"updated_at":"2026-11-10T22:48:53.006191Z"}],"euvd":[{"id":"EUVD-2026-73528","description":"Stack-based buffer overflow in Windows USB Driver allows an authorized attacker to elevate privileges over a network.","status":"published","published":"2026-09-08T17:15:50Z","modified":"2026-11-10T21:34:49Z","cvss":[{"version":"3.1","score":8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-10T22:23:48.645955Z"}],"ghsa":[{"id":"GHSA-7698-84hm-gqc4","title":"Stack-based buffer overflow in Windows USB Driver allows an authorized attacker to elevate...","description":"Stack-based buffer overflow in Windows USB Driver allows an authorized attacker to elevate privileges over a network.","status":"published","published":"2026-09-08T18:32:41Z","modified":"2026-09-08T18:32:44Z","cvss":[{"version":"3.1","score":8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T15:11:31.116638Z"}],"nvd":[{"id":"CVE-2026-69503","description":"Stack-based buffer overflow in Windows USB Driver allows an authorized attacker to elevate privileges over a network.","status":"published","published":"2026-09-08T18:19:17.337Z","modified":"2026-09-16T15:43:24.593Z","cvss":[{"version":"3.1","score":8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T14:12:44.840742Z"}]}}