{"id":"CVE-2018-8611","published":"2018-12-12T00:29:00Z","modified":"2026-06-17T02:05:11Z","title":"Microsoft Windows Kernel Privilege Escalation Vulnerability","vendor":"Microsoft","product":"Windows","tier":"core","eol":null,"description":{"text":"An elevation of privilege vulnerability exists when the Windows kernel fails to properly handle objects in memory, aka \"Windows Kernel 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.","provenance":"source","from":"NVD"},"summary":{"text":"The Windows kernel fails to properly handle objects in memory, producing an elevation of privilege flaw in the Windows operating system, affecting Windows 7, Windows 8.1, Windows 10, and several Windows Server releases. An attacker with local access and low-privileged credentials, requiring no user interaction, could exploit it to gain elevated privileges with high impact to confidentiality, integrity, and availability.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:14:03Z"},"cvss":{"score":7.8,"severity":"HIGH","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.04196,"percentile":0.90911,"date":"2026-10-28","provenance":"source"},"kev":{"dateAdded":"2022-05-24","dueDate":"2022-06-14","ransomware":false,"requiredAction":"Apply updates per vendor instructions.","notes":"https://nvd.nist.gov/vuln/detail/CVE-2018-8611","provenance":"source"},"vulncheckKev":{"dateAdded":"2018-10-29","exploitedFirstSeen":"2018-10-29","ransomware":false,"evidence":[{"url":"https://docs.google.com/spreadsheets/d/1lkNJ0uQwbeC1ZTRrxdtuPLCIl7mlUreoKfSIgajnSyY/edit","date":"2018-10-29"},{"url":"https://api.msrc.microsoft.com/cvrf/v3.0/cvrf/2018-Dec","date":"2018-12-11"},{"url":"https://securelist.com/zero-day-in-windows-kernel-transaction-manager-cve-2018-8611/89253/","date":"2018-12-12"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2022-05-24"},{"url":"https://thehackernews.com/2023/09/deadglyph-new-advanced-backdoor-with.html","date":"2023-09-25"}],"evidenceTotal":5,"provenance":"source"},"exploited":true,"otx":{"pulseCount":50,"pulses":[{"name":"Actively_Exploited_Kev | Oct 29, 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2026","url":"https://otx.alienvault.com/pulse/6ad62f63c24a405a3423cc13","created":"2026-10-19"},{"name":"Actively_Exploited_Kev | Oct 19, 2026","url":"https://otx.alienvault.com/pulse/6ad4dda174e5797d0bd238b7","created":"2026-10-18"},{"name":"Actively_Exploited_Kev | Oct 18, 2026","url":"https://otx.alienvault.com/pulse/6ad38c22e1848f8189d1c121","created":"2026-10-17"}],"provenance":"machine"},"cwes":[{"id":"CWE-404","name":"Improper Resource Shutdown or Release"}],"references":[{"url":"http://www.securityfocus.com/bid/106082","tags":["Third Party Advisory","VDB Entry"]},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8611","tags":["Patch","Vendor Advisory"]},{"url":"http://www.securityfocus.com/bid/106082","tags":["Third Party Advisory","VDB Entry"]},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8611","tags":["Patch","Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-8611","tags":["US Government Resource"]}],"techniques":[{"id":"T1190","name":"Exploit Public-Facing Application","tactics":["initial-access"],"provenance":"source","basis":"ctid-cve","bases":["ctid-cve"],"basisDetail":"CTID attack_to_cve (Phase 1)","mappingType":"uncategorized","evidence":[],"confidence":"low","confidenceNote":"CTID attack_to_cve Phase 1 \"Uncategorized\" mapping (not staged by impact)"},{"id":"T1068","name":"Exploitation for Privilege Escalation","tactics":["privilege-escalation"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Kernel flaw exploited for privilege escalation locally","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"elevation of privilege vulnerability exists when the Windows kernel fails","start":3,"end":76}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"},{"id":"T1548","name":"Abuse Elevation Control Mechanism","tactics":["privilege-escalation"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Memory handling flaw yields elevated privileges","mappingType":"primary_impact","evidence":[{"from":"description","quote":"fails to properly handle objects in memory","start":71,"end":113}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2018-20226","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2018-20226","exploited":true,"exploitedSince":"2022-05-24","provenance":"source"},"exploits":[],"exploitSources":{"pocGithub":{"count":2,"skipped":0,"earliest":"2021-04-27","earliestUrl":"https://github.com/lsw29475/CVE-2018-8611","repos":[{"name":"lsw29475/CVE-2018-8611","url":"https://github.com/lsw29475/CVE-2018-8611","stars":10,"created":"2021-04-27"},{"name":"ahm3dgg/cve-2018-8611","url":"https://github.com/ahm3dgg/cve-2018-8611","stars":1,"created":"2026-08-17"}]},"first":{"date":"2021-04-27","source":"PoC-in-GitHub","url":"https://github.com/lsw29475/CVE-2018-8611"},"provenance":"source"},"exploitRefs":[],"flow":[{"stage":"exploitation","techniques":["T1068"],"provenance":"ai"},{"stage":"primary","techniques":["T1548"],"provenance":"ai"},{"stage":"related","techniques":["T1190"],"provenance":"source","lowConfidence":true}],"timeline":[{"date":"2018-10-29","kind":"exploited-reported","label":"Exploitation 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