{"id":"CVE-2018-8589","aliases":[],"url":"https://o3.security/vulnerability/CVE-2018-8589","summary":"An elevation of privilege vulnerability exists when Windows improperly handles calls to Win32k.sys, aka \"Windows Win32k Elevation of Privilege Vulnerability.\" This affects Windows Server…","details":"An elevation of privilege vulnerability exists when Windows improperly handles calls to Win32k.sys, aka \"Windows Win32k Elevation of Privilege Vulnerability.\" This affects Windows Server 2008, Windows 7, Windows Server 2008 R2.","published":"2018-11-14T01:29:02.067","modified":"2026-06-17T02:05:09.510","cvss":{"score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":{"score":0.03023,"percentile":0.86783,"asOf":"2026-09-16"},"cisaKev":null,"exploitsKnown":5,"affectedPackages":[],"fix":null,"references":[{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/105796"},{"type":"ADVISORY","url":"http://www.securitytracker.com/id/1042140"},{"type":"FIX","url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8589"},{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/105796"},{"type":"ADVISORY","url":"http://www.securitytracker.com/id/1042140"},{"type":"FIX","url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8589"},{"type":"WEB","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-8589"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-06-17T02:05:09.510"}}