{"schema":"threatline.record/2","record":{"id":"CVE-2019-0803","aliases":[],"summary":"Microsoft Win32k Privilege Escalation Vulnerability","details":"Microsoft Win32k contains an unspecified vulnerability due to it failing to properly handle objects in memory causing privilege escalation. Successful exploitation allows an attacker to run code in kernel mode.","categories":["Operating systems"],"product":"Win32k","vendor":"Microsoft","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2019-0803","source_modified_at":"2025-10-21T23:45:39.783Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Windows","vendor":"Microsoft","versions":[{"status":"affected","version":"7 for 32-bit Systems Service Pack 1"},{"status":"affected","version":"7 for x64-based Systems Service Pack 1"},{"status":"affected","version":"8.1 for 32-bit systems"},{"status":"affected","version":"8.1 for x64-based systems"},{"status":"affected","version":"RT 8.1"},{"status":"affected","version":"10 for 32-bit Systems"},{"status":"affected","version":"10 for x64-based Systems"},{"status":"affected","version":"10 Version 1607 for 32-bit Systems"},{"status":"affected","version":"10 Version 1607 for x64-based Systems"},{"status":"affected","version":"10 Version 1703 for 32-bit Systems"},{"status":"affected","version":"10 Version 1703 for x64-based Systems"},{"status":"affected","version":"10 Version 1709 for 32-bit Systems"},{"status":"affected","version":"10 Version 1709 for x64-based Systems"},{"status":"affected","version":"10 Version 1803 for 32-bit Systems"},{"status":"affected","version":"10 Version 1803 for x64-based Systems"},{"status":"affected","version":"10 Version 1803 for ARM64-based Systems"},{"status":"affected","version":"10 Version 1809 for 32-bit Systems"},{"status":"affected","version":"10 Version 1809 for x64-based Systems"},{"status":"affected","version":"10 Version 1809 for ARM64-based Systems"},{"status":"affected","version":"10 Version 1709 for ARM64-based Systems"}],"defaultStatus":null},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2019-0803","source_modified_at":"2025-10-21T23:45:39.783Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Windows Server","vendor":"Microsoft","versions":[{"status":"affected","version":"2008 R2 for x64-based Systems Service Pack 1 (Core installation)"},{"status":"affected","version":"2008 R2 for Itanium-Based Systems Service Pack 1"},{"status":"affected","version":"2008 R2 for x64-based Systems Service Pack 1"},{"status":"affected","version":"2008 for 32-bit Systems Service Pack 2 (Core installation)"},{"status":"affected","version":"2012"},{"status":"affected","version":"2012 (Core installation)"},{"status":"affected","version":"2012 R2"},{"status":"affected","version":"2012 R2 (Core installation)"},{"status":"affected","version":"2016"},{"status":"affected","version":"2016  (Core installation)"},{"status":"affected","version":"version 1709  (Core Installation)"},{"status":"affected","version":"version 1803  (Core Installation)"},{"status":"affected","version":"2019"},{"status":"affected","version":"2019  (Core installation)"},{"status":"affected","version":"2008 for Itanium-Based Systems Service Pack 2"},{"status":"affected","version":"2008 for 32-bit Systems Service Pack 2"},{"status":"affected","version":"2008 for x64-based Systems Service Pack 2"},{"status":"affected","version":"2008 for x64-based Systems Service Pack 2 (Core installation)"}],"defaultStatus":null}],"fixed_versions":[],"cvss":7.8,"severity":"High","kev":{"listed":true,"date_added":"2021-11-03","due_date":"2022-05-03","required_action":"Apply updates per vendor instructions.","ransomware_campaign_use":"Known"},"epss":{"probability":0.4523,"percentile":0.98783,"score_date":"2026-10-23"},"published_at":"2019-04-09T20:15:28.000Z","modified_at":"2025-10-21T23:45:39.783Z","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-2019-0803","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2025-10-21T23:45:39.783Z"},{"source":"Exploit-DB","url":"https://www.exploit-db.com/exploits/46920","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2019-05-15"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2019-0803","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CISA KEV","CVE List","Exploit-DB","EPSS"],"references":[{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-0803","source":"CISA KEV"},{"source":"CVE List","url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0803","tags":["x_refsource_MISC","x_transferred"]},{"source":"CVE List","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-0803","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":"2025-02-07T16:18:31.260433Z"},"exploits":[{"source":"Exploit-DB","kind":"Local exploit","name":"Microsoft Windows - 'Win32k' Local Privilege Escalation","url":"https://www.exploit-db.com/exploits/46920","date":"2019-05-15","added":"2019-05-23","verified":false}],"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2025-10-21T23:45:39.783Z","content_hash":"482158a31f48dc4b3babba686d7af59347902dfcec51ad3ebfd34e23fc5862d1"}}