{"id":"CVE-2025-26651","aliases":["EUVD-2025-10226","GHSA-47qr-4ffm-5qm9"],"status":"published","title":"Windows Local Session Manager (LSM) Denial of Service Vulnerability","description":"Exposed dangerous method or function in Windows Local Session Manager (LSM) allows an authorized attacker to deny service over a network.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.02611,"percentile":0.85543,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-749"],"published":"2025-04-08T17:23:49Z","modified":"2026-08-10T15:12:45Z","products":[{"vendor":"microsoft","product":"windows 11 version 22h2"},{"vendor":"microsoft","product":"windows 11 version 22h3"},{"vendor":"microsoft","product":"windows 11 version 23h2"},{"vendor":"microsoft","product":"windows 11 version 24h2"},{"vendor":"microsoft","product":"windows server 2022"},{"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_22h2"},{"vendor":"microsoft","product":"windows_11_23h2"},{"vendor":"microsoft","product":"windows_11_24h2"},{"vendor":"microsoft","product":"windows_server_2022"},{"vendor":"microsoft","product":"windows_server_2022_23h2"},{"vendor":"microsoft","product":"windows_server_2025"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-26651","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-26651"},{"url":"https://github.com/advisories/GHSA-47qr-4ffm-5qm9"}],"sources":{"cve":[{"id":"CVE-2025-26651","title":"Windows Local Session Manager (LSM) Denial of Service Vulnerability","description":"Exposed dangerous method or function in Windows Local Session Manager (LSM) allows an authorized attacker to deny service over a network.","status":"published","published":"2025-04-08T17:23:49.718Z","modified":"2026-08-10T15:12:45.061Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C","level":"medium","assessor":"cna"}],"cwes":["CWE-749"],"updated_at":"2026-11-02T14:32:27.932735Z"}],"euvd":[{"id":"EUVD-2025-10226","description":"Exposed dangerous method or function in Windows Local Session Manager (LSM) allows an authorized attacker to deny service over a network.","status":"published","published":"2025-04-08T17:23:49Z","modified":"2026-08-10T15:12:45Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C","level":"medium"}],"updated_at":"2026-11-02T18:02:02.865075Z"}],"ghsa":[{"id":"GHSA-47qr-4ffm-5qm9","title":"Exposed dangerous method or function in Windows Local Session Manager (LSM) allows an authorized...","description":"Exposed dangerous method or function in Windows Local Session Manager (LSM) allows an authorized attacker to deny service over a network.","status":"published","published":"2025-04-08T18:34:46Z","modified":"2025-04-08T18:34:54Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-749"],"updated_at":"2026-11-02T15:00:51.102649Z"}],"nvd":[{"id":"CVE-2025-26651","description":"Exposed dangerous method or function in Windows Local Session Manager (LSM) allows an authorized attacker to deny service over a network.","status":"published","published":"2025-04-08T18:15:49.007Z","modified":"2026-06-17T09:02:12.46Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-749"],"updated_at":"2026-11-02T14:10:59.48027Z"}]}}