{"schema":"threatline.record/2","record":{"id":"CVE-2018-8589","aliases":[],"summary":"Microsoft Win32k Privilege Escalation Vulnerability","details":"A privilege escalation vulnerability exists when Windows improperly handles calls to Win32k.sys. An attacker who successfully exploited this vulnerability could run remote code in the security context of the local system.","categories":["Operating systems"],"product":"Win32k","vendor":"Microsoft","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2018-8589","source_modified_at":"2025-10-21T23:45:47.156Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Windows Server 2008","vendor":"Microsoft","versions":[{"status":"affected","version":"32-bit Systems Service Pack 2"},{"status":"affected","version":"32-bit Systems Service Pack 2 (Server Core installation)"},{"status":"affected","version":"Itanium-Based Systems Service Pack 2"},{"status":"affected","version":"x64-based Systems Service Pack 2"},{"status":"affected","version":"x64-based Systems Service Pack 2 (Server Core installation)"}],"defaultStatus":null},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2018-8589","source_modified_at":"2025-10-21T23:45:47.156Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Windows 7","vendor":"Microsoft","versions":[{"status":"affected","version":"32-bit Systems Service Pack 1"},{"status":"affected","version":"x64-based Systems Service Pack 1"}],"defaultStatus":null},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2018-8589","source_modified_at":"2025-10-21T23:45:47.156Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Windows Server 2008 R2","vendor":"Microsoft","versions":[{"status":"affected","version":"Itanium-Based Systems Service Pack 1"},{"status":"affected","version":"x64-based Systems Service Pack 1"},{"status":"affected","version":"x64-based Systems Service Pack 1 (Server Core installation)"}],"defaultStatus":null}],"fixed_versions":[],"cvss":7.8,"severity":"High","kev":{"listed":true,"date_added":"2022-05-23","due_date":"2022-06-13","required_action":"Apply updates per vendor instructions.","ransomware_campaign_use":"Unknown"},"epss":{"probability":0.03023,"percentile":0.87371,"score_date":"2026-10-23"},"published_at":"2018-11-14T01:00:00.000Z","modified_at":"2025-10-21T23:45:47.156Z","provenance":[{"source":"CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23T17:00:09.9001Z"},{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2018-8589","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2025-10-21T23:45:47.156Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2018-8589","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CISA KEV","CVE List","EPSS"],"references":[{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-8589","source":"CISA KEV"},{"source":"CVE List","url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8589","tags":["x_refsource_CONFIRM","x_transferred"]},{"source":"CVE List","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-8589","tags":["government-resource"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CISA ADP","ssvc":{"exploitation":"active","automatable":"no","technical_impact":"total","assessed_at":"2025-02-07T16:23:58.282862Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2025-10-21T23:45:47.156Z","content_hash":"cd1328d1c8ea55b07d890b6280c88c71eccb96ab8d4bcc238c6066c2d868eb94"}}