{"id":"CVE-2025-21271","aliases":["EUVD-2025-2336","GHSA-3fqg-54mc-wmg3"],"status":"published","title":"Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability","description":"Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00545,"percentile":0.46033,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-126"],"published":"2025-01-14T18:03:41Z","modified":"2026-06-17T08:42:57Z","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 server 2019"},{"vendor":"microsoft","product":"windows server 2019 (server core installation)"},{"vendor":"microsoft","product":"windows server 2022"},{"vendor":"microsoft","product":"windows_10_1809"},{"vendor":"microsoft","product":"windows_10_21h2"},{"vendor":"microsoft","product":"windows_10_22h2"},{"vendor":"microsoft","product":"windows_server_2019"},{"vendor":"microsoft","product":"windows_server_2022"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21271","tags":["vendor-advisory","patch","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-21271"},{"url":"https://github.com/advisories/GHSA-3fqg-54mc-wmg3"}],"sources":{"cve":[{"id":"CVE-2025-21271","title":"Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability","description":"Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability","status":"published","published":"2025-01-14T18:03:41.567Z","modified":"2026-06-09T18:28:34.633Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-126"],"updated_at":"2026-11-02T14:32:32.702673Z"}],"euvd":[{"id":"EUVD-2025-2336","description":"Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability","status":"published","published":"2025-01-14T18:03:41Z","modified":"2026-06-09T18:28:34Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-02T18:20:47.241018Z"}],"ghsa":[{"id":"GHSA-3fqg-54mc-wmg3","title":"Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability","description":"Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability","status":"published","published":"2025-01-14T18:32:03Z","modified":"2025-01-14T18:32:13Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-126"],"updated_at":"2026-11-02T14:59:30.708513Z"}],"nvd":[{"id":"CVE-2025-21271","description":"Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability","status":"published","published":"2025-01-14T18:15:46.747Z","modified":"2026-06-17T08:42:57.347Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-126"],"updated_at":"2026-11-02T14:10:48.373347Z"}]}}