{"cve_id":"CVE-2018-8589","published":"2018-11-14T01:29:02.067000+00:00","last_modified":"2026-06-17T02:05:09.510000+00:00","vuln_status":"Analyzed","description":"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.","cvss_version":"3.1","cvss_vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","base_score":7.8,"base_severity":"HIGH","attack_vector":"LOCAL","privileges_req":"LOW","user_interaction":"NONE","scope":"UNCHANGED","impact_c":"HIGH","impact_i":"HIGH","impact_a":"HIGH","cwe_ids":[],"in_kev":true,"kev_date_added":"2022-05-23","kev_ransomware":false,"epss_score":0.03023,"epss_percentile":0.8746,"cap_rule_version":"0.1.1","stage":"EXECUTION","req_access":"USER","req_vector":"LOCAL","req_user_interaction":false,"grant_access":"USER","caps":["CODE_EXEC"],"terminal":false,"cap_confidence":"medium","ingested_at":"2026-09-18T08:53:24.036797+00:00","first_seen":"2018-11-14T01:29:02.067000+00:00","kev_first_seen":"2022-05-23T00:00:00+00:00","novelty_score":0.0,"novelty_reasons":[],"novelty_at":null,"vendors":["microsoft"],"products":["windows_7","windows_server_2008"],"affected":[{"vendor":"microsoft","product":"windows_7","ranges":["all versions"]},{"vendor":"microsoft","product":"windows_server_2008","ranges":["all versions","r2"]}]}