{"id":"CVE-2026-50374","aliases":["EUVD-2026-43951","GHSA-939p-vc2w-r4cq"],"status":"published","title":"Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability","description":"Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges with a physical attack.","severity":{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00347,"percentile":0.28532,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-416"],"published":"2026-07-14T17:07:18Z","modified":"2026-11-01T17:34:58Z","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 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_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-2026-50374","tags":["vendor-advisory","patch","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-50374"},{"url":"https://github.com/advisories/GHSA-939p-vc2w-r4cq"}],"sources":{"cve":[{"id":"CVE-2026-50374","title":"Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability","description":"Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges with a physical attack.","status":"published","published":"2026-07-14T17:07:18.523Z","modified":"2026-11-01T17:34:58.913Z","cvss":[{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"medium","assessor":"cna"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:20:08.734143Z"}],"euvd":[{"id":"EUVD-2026-43951","description":"Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges with a physical attack.","status":"published","published":"2026-07-14T17:07:18Z","modified":"2026-11-01T17:34:58Z","cvss":[{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"medium"}],"updated_at":"2026-11-02T16:58:47.914819Z"}],"ghsa":[{"id":"GHSA-939p-vc2w-r4cq","title":"Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate...","description":"Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges with a physical attack.","status":"published","published":"2026-07-14T18:32:18Z","modified":"2026-07-14T18:32:23Z","cvss":[{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"medium"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T15:09:29.53235Z"}],"nvd":[{"id":"CVE-2026-50374","description":"Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges with a physical attack.","status":"published","published":"2026-07-14T18:17:38.507Z","modified":"2026-07-20T14:41:16.05Z","cvss":[{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"secondary"},{"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":"primary"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:12:29.489525Z"}]}}