{"id":"CVE-2026-96863","aliases":["EUVD-2026-99782","GHSA-m9hp-388g-8ghv"],"status":"published","title":"Windows Storage Port Driver Elevation of Privilege Vulnerability","description":"Heap-based buffer overflow in Windows Storage Port 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":0.00305,"percentile":0.23523,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-122"],"published":"2026-10-13T19:00:34Z","modified":"2026-11-10T20:40:33Z","products":[{"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 2025"},{"vendor":"microsoft","product":"windows server 2025 (server core installation)"},{"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_11_26h2"},{"vendor":"microsoft","product":"windows_server_2025"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96863","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-96863"},{"url":"https://github.com/advisories/GHSA-m9hp-388g-8ghv"}],"sources":{"cve":[{"id":"CVE-2026-96863","title":"Windows Storage Port Driver Elevation of Privilege Vulnerability","description":"Heap-based buffer overflow in Windows Storage Port Driver allows an unauthorized attacker to elevate privileges with a physical attack.","status":"published","published":"2026-10-13T19:00:34.396Z","modified":"2026-11-10T20:40:33.274Z","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":"2026-11-10T22:18:30.298108Z"}],"euvd":[{"id":"EUVD-2026-99782","description":"Heap-based buffer overflow in Windows Storage Port Driver allows an unauthorized attacker to elevate privileges with a physical attack.","status":"published","published":"2026-10-13T19:00:34Z","modified":"2026-11-10T20:40:33Z","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":"2026-11-10T22:23:58.54025Z"}],"ghsa":[{"id":"GHSA-m9hp-388g-8ghv","title":"Heap-based buffer overflow in Windows Storage Port Driver allows an unauthorized attacker to...","description":"Heap-based buffer overflow in Windows Storage Port Driver allows an unauthorized attacker to elevate privileges with a physical attack.","status":"published","published":"2026-10-13T21:37:03Z","modified":"2026-10-13T21:37:04Z","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":"2026-11-02T15:13:19.647865Z"}],"nvd":[{"id":"CVE-2026-96863","description":"Heap-based buffer overflow in Windows Storage Port Driver allows an unauthorized attacker to elevate privileges with a physical attack.","status":"published","published":"2026-10-13T19:22:00.493Z","modified":"2026-10-28T16:49:46.25Z","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":"2026-11-02T14:12:58.630796Z"}]}}