{"id":"CVE-2018-8440","aliases":["EUVD-2018-20076","GHSA-jw7v-w46m-p6pp"],"status":"published","title":"An elevation of privilege vulnerability exists when Windows improperly handles calls to Advanced...","description":"An elevation of privilege vulnerability exists when Windows improperly handles calls to Advanced Local Procedure Call (ALPC), aka \"Windows ALPC Elevation of Privilege Vulnerability.\" This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, 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:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.1853,"percentile":0.97268,"model":"v2026.06.15"},"facts":{"in_kev":true,"known_exploited":true,"public_exploit":true,"fix_available":false},"published":"2018-09-13T00:00:00Z","modified":"2026-06-17T02:04:52Z","kev":{"date_added":"2022-03-28","due_date":"2022-04-18","required_action":"Apply updates per vendor instructions.","known_ransomware_use":"Known"},"exploitation":[{"source":"euvd","since":"2022-03-28"},{"source":"kev","since":"2022-03-28"}],"exploits":[{"source":"metasploit","id":"exploit/windows/local/alpc_taskscheduler","title":"Microsoft Windows ALPC Task Scheduler Local Privilege Elevation","type":"exploit","platform":"Windows","date":"2018-08-27","verified":true,"url":"https://www.rapid7.com/db/modules/exploit/windows/local/alpc_taskscheduler"},{"source":"pocgithub","id":"sourceincite/CVE-2018-8440","title":"sourceincite/CVE-2018-8440","date":"2018-10-31","url":"https://github.com/sourceincite/CVE-2018-8440"}],"products":[{"vendor":"microsoft","product":"windows"},{"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_10_1607"},{"vendor":"microsoft","product":"windows_10_1703"},{"vendor":"microsoft","product":"windows_10_1709"},{"vendor":"microsoft","product":"windows_10_1803"},{"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_2012"},{"vendor":"microsoft","product":"windows_server_2016"}],"references":[{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8440","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory"]},{"url":"https://blog.0patch.com/2018/09/comparing-our-micropatch-with.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://blog.0patch.com/2018/08/how-we-micropatched-publicly-dropped.html","tags":["x_refsource_MISC","x_transferred","Exploit","Patch","Third Party Advisory"]},{"url":"http://www.securitytracker.com/id/1041578","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"http://www.securityfocus.com/bid/105153","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-8440","tags":["government-resource","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-8440"},{"url":"https://github.com/advisories/GHSA-jw7v-w46m-p6pp"}],"sources":{"cve":[{"id":"CVE-2018-8440","description":"An elevation of privilege vulnerability exists when Windows improperly handles calls to Advanced Local Procedure Call (ALPC), aka \"Windows ALPC Elevation of Privilege Vulnerability.\" This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers.","status":"published","published":"2018-09-13T00:00:00Z","modified":"2025-10-21T23:45:48.243Z","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":"2026-11-02T14:35:04.540365Z"}],"euvd":[{"id":"EUVD-2018-20076","description":"An elevation of privilege vulnerability exists when Windows improperly handles calls to Advanced Local Procedure Call (ALPC), aka \"Windows ALPC Elevation of Privilege Vulnerability.\" This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 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