{"id":"CVE-2019-0803","aliases":["EUVD-2019-1559","GHSA-6h99-5j8v-7r3p"],"status":"published","title":"An elevation of privilege vulnerability exists in Windows when the Win32k component fails to...","description":"An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka 'Win32k Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-0685, CVE-2019-0859.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-06","score":0.4523,"percentile":0.9879,"model":"v2026.06.15"},"facts":{"in_kev":true,"known_exploited":true,"public_exploit":true,"fix_available":false},"published":"2019-04-09T20:15:28Z","modified":"2026-06-17T02:08:56Z","kev":{"date_added":"2021-11-03","due_date":"2022-05-03","required_action":"Apply updates per vendor instructions.","known_ransomware_use":"Known"},"exploitation":[{"source":"euvd","since":"2021-11-03"},{"source":"kev","since":"2021-11-03"}],"exploits":[{"source":"exploitdb","id":"EDB-46920","title":"Microsoft Windows - 'Win32k' Local Privilege Escalation","type":"local","platform":"windows","date":"2019-05-15","url":"https://www.exploit-db.com/exploits/46920"},{"source":"pocgithub","id":"ExpLife0011/CVE-2019-0803","title":"ExpLife0011/CVE-2019-0803","date":"2019-05-17","url":"https://github.com/ExpLife0011/CVE-2019-0803"},{"source":"pocgithub","id":"Iamgublin/CVE-2019-0803","title":"Iamgublin/CVE-2019-0803","date":"2019-05-17","url":"https://github.com/Iamgublin/CVE-2019-0803"}],"products":[{"vendor":"microsoft","product":"win32k"},{"vendor":"microsoft","product":"windows"},{"vendor":"microsoft","product":"windows server"},{"vendor":"microsoft","product":"windows_10_1507"},{"vendor":"microsoft","product":"windows_10_1607"},{"vendor":"microsoft","product":"windows_10_1703"},{"vendor":"microsoft","product":"windows_10_1709"},{"vendor":"microsoft","product":"windows_10_1803"},{"vendor":"microsoft","product":"windows_10_1809"},{"vendor":"microsoft","product":"windows_7"},{"vendor":"microsoft","product":"windows_8.1"},{"vendor":"microsoft","product":"windows_rt_8.1"},{"vendor":"microsoft","product":"windows_server_1709"},{"vendor":"microsoft","product":"windows_server_1803"},{"vendor":"microsoft","product":"windows_server_2008"},{"vendor":"microsoft","product":"windows_server_2012"},{"vendor":"microsoft","product":"windows_server_2016"},{"vendor":"microsoft","product":"windows_server_2019"}],"references":[{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0803","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"http://packetstormsecurity.com/files/153034/Microsoft-Windows-Win32k-Privilege-Escalation.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-0803","tags":["government-resource","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-0803"},{"url":"https://github.com/advisories/GHSA-6h99-5j8v-7r3p"}],"sources":{"cve":[{"id":"CVE-2019-0803","description":"An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka 'Win32k Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-0685, CVE-2019-0859.","status":"published","published":"2019-04-09T20:15:28Z","modified":"2025-10-21T23:45:39.783Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"adp"}],"updated_at":"2026-11-02T14:32:24.110857Z"}],"euvd":[{"id":"EUVD-2019-1559","description":"An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka 'Win32k Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-0685, CVE-2019-0859.","status":"published","published":"2019-04-09T20:15:28Z","modified":"2025-10-21T23:45:39Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"exploited_since":"2021-11-03","updated_at":"2026-11-02T20:31:24.172282Z"}],"ghsa":[{"id":"GHSA-6h99-5j8v-7r3p","title":"An elevation of privilege vulnerability exists in Windows when the Win32k component fails to...","description":"An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka 'Win32k Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-0685, CVE-2019-0859.","status":"published","published":"2022-05-13T01:21:36Z","modified":"2025-10-22T00:32:42Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:04:06.493434Z"}],"kev":[{"id":"CVE-2019-0803","title":"Microsoft Win32k Privilege Escalation Vulnerability","description":"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.","kev":{"date_added":"2021-11-03","due_date":"2022-05-03","required_action":"Apply updates per vendor instructions.","known_ransomware_use":"Known"},"updated_at":"2026-11-02T17:00:17.050017Z"}],"nvd":[{"id":"CVE-2019-0803","description":"An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka 'Win32k Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-0685, CVE-2019-0859.","status":"published","published":"2019-04-09T21:29:01.037Z","modified":"2026-06-17T02:08:56.287Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"2.0","score":7.2,"vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:05:11.426883Z"}]}}