{"id":"CVE-2025-55679","published":"2025-10-14T17:01:05Z","modified":"2026-02-22T17:25:17Z","title":"Windows Kernel Information Disclosure Vulnerability","vendor":"Microsoft","product":"Windows 10 Version 1809","tier":"tail","description":{"text":"Improper input validation in Windows Kernel allows an unauthorized attacker to disclose information locally.","provenance":"source","from":"CVE.org"},"cvss":{"score":5.1,"severity":"MEDIUM","version":"3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","provenance":"source","from":"CVE.org CNA"},"epss":{"score":0.00464,"percentile":0.40075,"provenance":"source"},"cwes":[{"id":"CWE-20","name":"Improper Input Validation"},{"id":"CWE-200","name":"Exposure of Sensitive Information to an Unauthorized Actor"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-55679","tags":["vendor-advisory","patch"]}],"priority":{"score":11.6,"factors":[{"name":"EPSS percentile","points":8.02},{"name":"CVSS severity","points":3.57}]},"vendorSlug":"microsoft","affectedVersions":[{"vendor":"Microsoft","product":"Windows 10 Version 1809","versions":[">= 10.0.17763.0, < 10.0.17763.7919"]},{"vendor":"Microsoft","product":"Windows 10 Version 21H2","versions":[">= 10.0.19044.0, < 10.0.19044.6456"]},{"vendor":"Microsoft","product":"Windows 10 Version 22H2","versions":[">= 10.0.19045.0, < 10.0.19045.6456"]},{"vendor":"Microsoft","product":"Windows 11 version 22H2","versions":[">= 10.0.22621.0, < 10.0.22621.6060"]},{"vendor":"Microsoft","product":"Windows 11 version 22H3","versions":[">= 10.0.22631.0, < 10.0.22631.6060"]},{"vendor":"Microsoft","product":"Windows 11 Version 23H2","versions":[">= 10.0.22631.0, < 10.0.22631.6060"]},{"vendor":"Microsoft","product":"Windows 11 Version 24H2","versions":[">= 10.0.26100.0, < 10.0.26100.6899"]},{"vendor":"Microsoft","product":"Windows 11 Version 25H2","versions":[">= 10.0.26200.0, < 10.0.26200.6899"]},{"vendor":"Microsoft","product":"Windows Server 2019","versions":[">= 10.0.17763.0, < 10.0.17763.7919"]},{"vendor":"Microsoft","product":"Windows Server 2019 (Server Core installation)","versions":[">= 10.0.17763.0, < 10.0.17763.7919"]}],"euvd":{"id":"EUVD-2025-34337","exploited":false,"provenance":"source"},"lineage":{"familyId":"fam-class-microsoft-windows-cwe-20"}}