{"id":"CVE-2026-24283","aliases":["EUVD-2026-10602","GHSA-663r-gf69-4p39"],"status":"published","title":"Multiple UNC Provider Kernel Driver Elevation of Privilege Vulnerability","description":"Heap-based buffer overflow in Windows File Server allows an authorized attacker to elevate privileges locally.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00433,"percentile":0.3803,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-122"],"published":"2026-03-10T17:04:39Z","modified":"2026-06-19T18:17:26Z","products":[{"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 2022, 23h2 edition (server core installation)"},{"vendor":"microsoft","product":"windows server 2025"},{"vendor":"microsoft","product":"windows server 2025 (server core installation)"},{"vendor":"microsoft","product":"windows_11_24h2"},{"vendor":"microsoft","product":"windows_11_25h2"},{"vendor":"microsoft","product":"windows_11_26h1"},{"vendor":"microsoft","product":"windows_server_2022_23h2"},{"vendor":"microsoft","product":"windows_server_2025"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-24283","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-24283"},{"url":"https://github.com/advisories/GHSA-663r-gf69-4p39"}],"sources":{"cve":[{"id":"CVE-2026-24283","title":"Multiple UNC Provider Kernel Driver Elevation of Privilege Vulnerability","description":"Heap-based buffer overflow in Windows File Server allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-03-10T17:04:39.725Z","modified":"2026-06-19T18:17:26.84Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T14:19:50.575061Z"}],"euvd":[{"id":"EUVD-2026-10602","description":"Heap-based buffer overflow in Windows File Server allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-03-10T17:04:39Z","modified":"2026-06-19T18:17:26Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-02T18:20:35.844489Z"}],"ghsa":[{"id":"GHSA-663r-gf69-4p39","title":"Heap-based buffer overflow in Windows File Server allows an authorized attacker to elevate...","description":"Heap-based buffer overflow in Windows File Server allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-03-10T18:31:20Z","modified":"2026-03-10T18:31:25Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T15:06:32.038351Z"}],"nvd":[{"id":"CVE-2026-24283","description":"Heap-based buffer overflow in Windows File Server allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-03-10T18:18:18.17Z","modified":"2026-06-17T10:22:49.683Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T14:12:08.279852Z"}]}}