{"id":"CVE-2024-49138","url":"https://www.cyber-defence.io/tools/cve/CVE-2024-49138","generatedAt":"2026-10-31T08:10:21.108Z","title":"Microsoft Windows Common Log File System (CLFS) Driver Heap-Based Buffer Overflow Vulnerability","description":"Windows Common Log File System Driver Elevation of Privilege Vulnerability","published":"2024-12-12T02:04:40.000Z","lastModified":"2026-06-17T07:59:29.000Z","status":"Analyzed","sourceIdentifier":"secure@microsoft.com","cvss":{"version":"3.1","score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-122"],"affected":["microsoft/windows 10 1507","microsoft/windows 10 1607","microsoft/windows 10 1809","microsoft/windows 10 21h2","microsoft/windows 10 22h2","microsoft/windows 11 22h2","microsoft/windows 11 23h2","microsoft/windows 11 24h2","microsoft/windows server 2008","microsoft/windows server 2012","microsoft/windows server 2016","microsoft/windows server 2019","microsoft/windows server 2022","microsoft/windows server 2022 23h2","microsoft/windows server 2025"],"epss":{"score":0.26215,"percentile":0.97996,"date":"2026-10-30","history":[]},"kev":{"listed":true,"dateAdded":"2024-12-10","dueDate":"2024-12-31","knownRansomwareCampaignUse":"Unknown","notes":"Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.\nhttps://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2024-49138 ; https://nvd.nist.gov/vuln/detail/CVE-2024-49138"},"exploits":{"count":1,"verified":false,"firstPublished":"2025-04-22","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":52270,"kind":"exploit","title":"Microsoft Windows 11 23h2 - CLFS.sys Elevation of Privilege","url":"https://www.exploit-db.com/exploits/52270","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/windows/local/52270.c","file":"exploits/windows/local/52270.c","published":"2025-04-22","added":"2025-04-22","updated":"2025-04-22","author":"Milad karimi","type":"local","platform":"windows","port":null,"verified":false,"codes":["CVE-2024-49138"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":null}]},"verdict":{"level":"urgent","text":"Known to be exploited in the wild (CISA KEV, CISA remediation deadline 31 December 2024). Treat as an emergency change: patch or isolate now, then hunt for prior compromise."},"changes":[],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-49138","tags":["Patch","Vendor Advisory"],"source":"secure@microsoft.com"},{"url":"https://packetstorm.news/files/id/190585/","tags":["Exploit","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/52270","tags":["Exploit","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-49138","tags":["US Government Resource"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2024-49138","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}