{"id":"CVE-2023-21771","aliases":["EUVD-2023-25938","GHSA-xwqg-3xfc-gp8v"],"status":"published","title":"Windows Local Session Manager (LSM) Elevation of Privilege Vulnerability","description":"Windows Local Session Manager (LSM) Elevation of Privilege Vulnerability","severity":{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/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":0.0042,"percentile":0.36615,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-362","CWE-591"],"published":"2023-01-10T00:00:00Z","modified":"2026-06-17T05:33:56Z","products":[{"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 2022"},{"vendor":"microsoft","product":"windows_10"},{"vendor":"microsoft","product":"windows_11"},{"vendor":"microsoft","product":"windows_server_2022"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21771","tags":["vendor-advisory","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-21771"},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-21771"},{"url":"https://github.com/advisories/GHSA-xwqg-3xfc-gp8v"}],"sources":{"cve":[{"id":"CVE-2023-21771","title":"Windows Local Session Manager (LSM) Elevation of Privilege Vulnerability","description":"Windows Local Session Manager (LSM) Elevation of Privilege Vulnerability","status":"published","published":"2023-01-10T00:00:00Z","modified":"2025-04-12T03:55:16.305Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-591"],"updated_at":"2026-11-02T14:35:20.368244Z"}],"euvd":[{"id":"EUVD-2023-25938","description":"Windows Local Session Manager (LSM) Elevation of Privilege Vulnerability","status":"published","published":"2023-01-10T00:00:00Z","modified":"2025-04-12T03:55:16Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-02T20:52:33.975888Z"}],"ghsa":[{"id":"GHSA-xwqg-3xfc-gp8v","title":"Windows Local Session Manager (LSM) Elevation of Privilege Vulnerability.","description":"Windows Local Session Manager (LSM) Elevation of Privilege Vulnerability.","status":"published","published":"2023-01-11T00:30:45Z","modified":"2023-04-27T21:30:23Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-362"],"updated_at":"2026-11-02T14:54:33.975596Z"}],"nvd":[{"id":"CVE-2023-21771","description":"Windows Local Session Manager (LSM) Elevation of Privilege Vulnerability","status":"published","published":"2023-01-10T22:15:19.427Z","modified":"2026-06-17T05:33:56.473Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-591","CWE-362"],"updated_at":"2026-11-02T14:07:45.305824Z"}]}}