{"id":"CVE-2023-36424","published":"2023-11-14T18:15:45Z","modified":"2026-06-17T06:06:15Z","title":"Microsoft Windows Out-of-Bounds Read Vulnerability","vendor":"Microsoft","product":"Windows","tier":"core","eol":null,"description":{"text":"Windows Common Log File System Driver Elevation of Privilege Vulnerability","provenance":"source","from":"NVD"},"summary":{"text":"The vulnerability is an out-of-bounds read in the Windows Common Log File System Driver, a component of Microsoft Windows. An attacker with local access and low-privilege credentials can exploit it without user interaction to elevate privileges on the affected system.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:13:31Z"},"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":0.12087,"percentile":0.96134,"date":"2026-10-29","provenance":"source"},"kev":{"dateAdded":"2026-04-13","dueDate":"2026-04-27","ransomware":false,"requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","notes":"https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2023-36424 ; https://nvd.nist.gov/vuln/detail/CVE-2023-36424","provenance":"source"},"vulncheckKev":{"dateAdded":"2026-04-13","exploitedFirstSeen":"2026-04-13","ransomware":false,"evidence":[{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2026-04-13"}],"evidenceTotal":1,"provenance":"source"},"exploited":true,"otx":{"pulseCount":50,"pulses":[{"name":"Actively_Exploited_Kev | Oct 29, 2026","url":"https://otx.alienvault.com/pulse/6ae20c1db17e7057ae7d9ad1","created":"2026-10-28"},{"name":"Actively_Exploited_Kev | Oct 28, 2026","url":"https://otx.alienvault.com/pulse/6ae0ba7e0e2a97ff7b218819","created":"2026-10-27"},{"name":"Actively_Exploited_Kev | Oct 27, 2026","url":"https://otx.alienvault.com/pulse/6adf68b85c3e852f3c111d18","created":"2026-10-26"},{"name":"Actively_Exploited_Kev | Oct 24, 2026","url":"https://otx.alienvault.com/pulse/6adb740e397c3ad4799aa4cd","created":"2026-10-23"},{"name":"Actively_Exploited_Kev | Oct 23, 2026","url":"https://otx.alienvault.com/pulse/6ada236fcfba2dfa730ea482","created":"2026-10-22"},{"name":"Actively_Exploited_Kev | Oct 22, 2026","url":"https://otx.alienvault.com/pulse/6ad8d33a077cbb5cab524d80","created":"2026-10-21"},{"name":"Actively_Exploited_Kev | Oct 21, 2026","url":"https://otx.alienvault.com/pulse/6ad78130c4d1ac2be83a8b6d","created":"2026-10-20"},{"name":"Actively_Exploited_Kev | Oct 20, 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-125","name":"Out-of-bounds Read"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36424","tags":["Patch","Vendor Advisory"]},{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36424","tags":["Patch","Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-36424","tags":["US Government Resource"]}],"techniques":[{"id":"T1068","name":"Exploitation for Privilege Escalation","tactics":["privilege-escalation"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Local privilege escalation via kernel driver flaw.","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"Windows Common Log File System Driver Elevation of Privilege Vulnerability","start":0,"end":74}],"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: Elevation to higher privileges is the direct impact.","mappingType":"primary_impact","evidence":[{"from":"description","quote":"Windows Common Log File System Driver Elevation of Privilege Vulnerability","start":0,"end":74}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2023-40389","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2023-40389","exploited":true,"exploitedSince":"2026-04-13","provenance":"source"},"exploits":[],"exploitSources":{"pocGithub":{"count":1,"skipped":0,"earliest":"2024-03-21","earliestUrl":"https://github.com/zerozenxlabs/CVE-2023-36424","repos":[{"name":"zerozenxlabs/CVE-2023-36424","url":"https://github.com/zerozenxlabs/CVE-2023-36424","stars":130,"created":"2024-03-21"}]},"first":{"date":"2024-03-21","source":"PoC-in-GitHub","url":"https://github.com/zerozenxlabs/CVE-2023-36424"},"provenance":"source"},"exploitRefs":[],"flow":[{"stage":"exploitation","techniques":["T1068"],"provenance":"ai"},{"stage":"primary","techniques":["T1548"],"provenance":"ai"}],"timeline":[{"date":"2023-11-14","kind":"published","label":"Published 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