{"id":"CVE-2023-23376","aliases":["EUVD-2023-27476","GHSA-j6mx-66rf-6rxq"],"status":"published","title":"Windows Common Log File System Driver Elevation of Privilege Vulnerability","description":"Windows Common Log File System 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":0.10853,"percentile":0.95893,"model":"v2026.06.15"},"facts":{"in_kev":true,"known_exploited":true,"public_exploit":false,"fix_available":false},"cwes":["CWE-122","CWE-787"],"published":"2023-02-14T19:33:49Z","modified":"2026-08-19T17:18:20Z","kev":{"date_added":"2023-02-14","due_date":"2023-03-07","required_action":"Apply updates per vendor instructions.","known_ransomware_use":"Known"},"exploitation":[{"source":"euvd","since":"2023-02-14"},{"source":"kev","since":"2023-02-14"}],"products":[{"vendor":"microsoft","product":"windows"},{"vendor":"microsoft","product":"windows 10 version 1507"},{"vendor":"microsoft","product":"windows 10 version 1607"},{"vendor":"microsoft","product":"windows 10 version 1809"},{"vendor":"microsoft","product":"windows 10 version 20h2"},{"vendor":"microsoft","product":"windows 10 version 21h2"},{"vendor":"microsoft","product":"windows 10 version 22h2"},{"vendor":"microsoft","product":"windows 11 version 21h2"},{"vendor":"microsoft","product":"windows 11 version 22h2"},{"vendor":"microsoft","product":"windows server 2008  service pack 2"},{"vendor":"microsoft","product":"windows server 2008 r2 service pack 1"},{"vendor":"microsoft","product":"windows server 2008 r2 service pack 1 (server core installation)"},{"vendor":"microsoft","product":"windows server 2008 service pack 2"},{"vendor":"microsoft","product":"windows server 2008 service pack 2 (server core installation)"},{"vendor":"microsoft","product":"windows server 2012"},{"vendor":"microsoft","product":"windows server 2012 (server core installation)"},{"vendor":"microsoft","product":"windows server 2012 r2"},{"vendor":"microsoft","product":"windows server 2012 r2 (server core installation)"},{"vendor":"microsoft","product":"windows server 2016"},{"vendor":"microsoft","product":"windows server 2016 (server core installation)"},{"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_1507"},{"vendor":"microsoft","product":"windows_10_1607"},{"vendor":"microsoft","product":"windows_10_1809"},{"vendor":"microsoft","product":"windows_10_20h2"},{"vendor":"microsoft","product":"windows_10_21h2"},{"vendor":"microsoft","product":"windows_10_22h2"},{"vendor":"microsoft","product":"windows_11_21h2"},{"vendor":"microsoft","product":"windows_11_22h2"},{"vendor":"microsoft","product":"windows_server_2008"},{"vendor":"microsoft","product":"windows_server_2012"},{"vendor":"microsoft","product":"windows_server_2016"},{"vendor":"microsoft","product":"windows_server_2019"},{"vendor":"microsoft","product":"windows_server_2022"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-23376","tags":["vendor-advisory","patch","x_transferred","Patch","Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-23376","tags":["government-resource","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-23376"},{"url":"https://github.com/advisories/GHSA-j6mx-66rf-6rxq"}],"sources":{"cve":[{"id":"CVE-2023-23376","title":"Windows Common Log File System Driver Elevation of Privilege Vulnerability","description":"Windows Common Log File System Driver Elevation of Privilege Vulnerability","status":"published","published":"2023-02-14T19:33:49.531Z","modified":"2026-08-19T16:27:15.739Z","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-122"],"updated_at":"2026-11-02T14:35:20.812737Z"}],"euvd":[{"id":"EUVD-2023-27476","description":"Windows Common Log File System Driver Elevation of Privilege Vulnerability","status":"published","published":"2023-02-14T19:33:49Z","modified":"2026-08-19T16:27:15Z","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"}],"exploited_since":"2023-02-14","updated_at":"2026-11-02T18:01:43.218519Z"}],"ghsa":[{"id":"GHSA-j6mx-66rf-6rxq","title":"Windows Common Log File System Driver Elevation of Privilege Vulnerability","description":"Windows Common Log File System Driver Elevation of Privilege Vulnerability","status":"published","published":"2023-02-14T21:30:28Z","modified":"2025-10-22T00:33:50Z","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-122","CWE-787"],"updated_at":"2026-11-02T15:04:08.198655Z"}],"kev":[{"id":"CVE-2023-23376","title":"Microsoft Windows Common Log File System (CLFS) Driver Privilege Escalation Vulnerability","description":"Microsoft Windows Common Log File System (CLFS) driver contains an unspecified vulnerability that allows for privilege escalation.","cwes":["CWE-122"],"kev":{"date_added":"2023-02-14","due_date":"2023-03-07","required_action":"Apply updates per vendor instructions.","known_ransomware_use":"Known"},"updated_at":"2026-11-02T17:00:16.234141Z"}],"nvd":[{"id":"CVE-2023-23376","description":"Windows Common Log File System Driver Elevation of Privilege Vulnerability","status":"published","published":"2023-02-14T20:15:16.907Z","modified":"2026-08-19T17:18:20.433Z","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-122","CWE-787"],"updated_at":"2026-11-02T14:07:46.811196Z"}]}}