{"id":"CVE-2018-8453","aliases":["EUVD-2018-20088","GHSA-8587-44mr-xf6j"],"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 affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2019, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.70042,"percentile":0.99381,"model":"v2026.06.15"},"facts":{"in_kev":true,"known_exploited":true,"public_exploit":true,"fix_available":false},"cwes":["CWE-404"],"published":"2018-10-10T13:00:00Z","modified":"2026-08-13T05:17:19Z","kev":{"date_added":"2022-01-21","due_date":"2022-07-21","required_action":"Apply updates per vendor instructions.","known_ransomware_use":"Known"},"exploitation":[{"source":"euvd","since":"2022-01-21"},{"source":"kev","since":"2022-01-21"}],"exploits":[{"source":"metasploit","id":"exploit/windows/local/cve_2018_8453_win32k_priv_esc","title":"Windows NtUserSetWindowFNID Win32k User Callback","type":"exploit","platform":"Windows","date":"2018-10-09","verified":true,"url":"https://www.rapid7.com/db/modules/exploit/windows/local/cve_2018_8453_win32k_priv_esc"},{"source":"pocgithub","id":"Mkv4/cve-2018-8453-exp","title":"Mkv4/cve-2018-8453-exp","date":"2019-01-18","url":"https://github.com/Mkv4/cve-2018-8453-exp"},{"source":"pocgithub","id":"ze0r/cve-2018-8453-exp","title":"ze0r/cve-2018-8453-exp","date":"2019-01-18","url":"https://github.com/ze0r/cve-2018-8453-exp"},{"source":"pocgithub","id":"thepwnrip/leHACK-Analysis-of-CVE-2018-8453","title":"thepwnrip/leHACK-Analysis-of-CVE-2018-8453","date":"2019-07-08","url":"https://github.com/thepwnrip/leHACK-Analysis-of-CVE-2018-8453"},{"source":"exploitdb","id":"EDB-47134","title":"Microsoft Windows - NtUserSetWindowFNID Win32k User Callback Privilege Escalation (Metasploit)","type":"local","platform":"windows","date":"2019-07-17","verified":true,"url":"https://www.exploit-db.com/exploits/47134"}],"products":[{"vendor":"microsoft","product":"win32k"},{"vendor":"microsoft","product":"windows 10"},{"vendor":"microsoft","product":"windows 10 servers"},{"vendor":"microsoft","product":"windows 7"},{"vendor":"microsoft","product":"windows 8.1"},{"vendor":"microsoft","product":"windows rt 8.1"},{"vendor":"microsoft","product":"windows server 2008"},{"vendor":"microsoft","product":"windows server 2008 r2"},{"vendor":"microsoft","product":"windows server 2012"},{"vendor":"microsoft","product":"windows server 2012 r2"},{"vendor":"microsoft","product":"windows server 2016"},{"vendor":"microsoft","product":"windows server 2019"},{"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":"http://www.securitytracker.com/id/1041828","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","Broken Link","Third Party Advisory","VDB Entry"]},{"url":"https://securelist.com/cve-2018-8453-used-in-targeted-attack","tags":["x_refsource_MISC","x_transferred","Exploit","Technical Description","Third Party Advisory"]},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8453","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory"]},{"url":"http://www.securityfocus.com/bid/105467","tags":["vdb-entry","x_refsource_BID","x_transferred","Broken Link","Third Party Advisory","VDB Entry"]},{"url":"http://packetstormsecurity.com/files/153669/Microsoft-Windows-NtUserSetWindowFNID-Win32k-User-Callback.html","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","VDB Entry"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-8453","tags":["government-resource","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-8453"},{"url":"https://github.com/advisories/GHSA-8587-44mr-xf6j"}],"sources":{"cve":[{"id":"CVE-2018-8453","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 affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2019, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers.","status":"published","published":"2018-10-10T13:00:00Z","modified":"2026-08-13T03:55:24.697Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"adp"}],"updated_at":"2026-11-02T14:35:04.540365Z"}],"euvd":[{"id":"EUVD-2018-20088","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 affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2019, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers.","status":"published","published":"2018-10-10T13:00:00Z","modified":"2026-08-13T03:55:24Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"exploited_since":"2022-01-21","updated_at":"2026-11-02T18:01:57.213133Z"}],"ghsa":[{"id":"GHSA-8587-44mr-xf6j","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 affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2019, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers.","status":"published","published":"2022-05-13T01:53:42Z","modified":"2025-10-22T00:32:37Z","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"}],"cwes":["CWE-404"],"updated_at":"2026-11-02T15:04:05.954742Z"}],"kev":[{"id":"CVE-2018-8453","title":"Microsoft Win32k Privilege Escalation Vulnerability","description":"Microsoft Windows Win32k contains a vulnerability that allows an attacker to escalate privileges.","cwes":["CWE-404"],"kev":{"date_added":"2022-01-21","due_date":"2022-07-21","required_action":"Apply updates per vendor instructions.","known_ransomware_use":"Known"},"updated_at":"2026-11-02T17:00:16.541131Z"}],"nvd":[{"id":"CVE-2018-8453","description":"An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka \"Win32k 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