CVE-2024-49138
Windows Common Log File System Driver Elevation of Privilege Vulnerability
- Published
- Updated
- Reserved
- Assigned by
- microsoft
Description
Windows Common Log File System Driver Elevation of Privilege Vulnerability
Exploited in the wild
CISA lists this vulnerability in its Known Exploited Vulnerabilities catalog as Microsoft Windows Common Log File System (CLFS) Driver Heap-Based Buffer Overflow Vulnerability.
- Added
- 10 Dec 2024
- Fix due (US federal)
- 31 Dec 2024
- Used by ransomware
- Not known
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. CISA's SSVC rates its exploitation: it is being exploited.
Timeline
ID reserved
By microsoft
- 2 months later
· 2 months later
Published
Added to CISA KEV
Known exploited in the wild
- 18 months later
· 18 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| microsoftCNA (assigner) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C |
| NVDNVD · Analyzed | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 26.2% · top 2.0% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: active · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Weakness
Affected products
Microsoft · Windows 10 Version 1507
- affected 10.0.10240.0 – < 10.0.10240.20857
Microsoft · Windows 10 Version 1607
- affected 10.0.14393.0 – < 10.0.14393.7606
Microsoft · Windows 10 Version 1809
- affected 10.0.17763.0 – < 10.0.17763.6659
Microsoft · Windows 10 Version 21H2
- affected 10.0.19043.0 – < 10.0.19044.5247
Microsoft · Windows 10 Version 22H2
- affected 10.0.19045.0 – < 10.0.19045.5247
Microsoft · Windows 11 version 22H2
- affected 10.0.22621.0 – < 10.0.22621.4602
Microsoft · Windows 11 version 22H3
- affected 10.0.22631.0 – < 10.0.22631.4602
Microsoft · Windows 11 Version 23H2
- affected 10.0.22631.0 – < 10.0.22631.4602
Microsoft · Windows 11 Version 24H2
- affected 10.0.26100.0 – < 10.0.26100.2605
Microsoft · Windows Server 2008 Service Pack 2
- affected 6.0.6003.0 – < 6.0.6003.23016
Microsoft · Windows Server 2008 R2 Service Pack 1
- affected 6.1.7601.0 – < 6.1.7601.27467
Microsoft · Windows Server 2008 R2 Service Pack 1 (Server Core installation)
- affected 6.1.7601.0 – < 6.1.7601.27467
Microsoft · Windows Server 2008 Service Pack 2
- affected 6.0.6003.0 – < 6.0.6003.23016
Microsoft · Windows Server 2008 Service Pack 2 (Server Core installation)
- affected 6.0.6003.0 – < 6.0.6003.23016
Microsoft · Windows Server 2012
- affected 6.2.9200.0 – < 6.2.9200.25222
Microsoft · Windows Server 2012 (Server Core installation)
- affected 6.2.9200.0 – < 6.2.9200.25222
Microsoft · Windows Server 2012 R2
- affected 6.3.9600.0 – < 6.3.9600.22318
Microsoft · Windows Server 2012 R2 (Server Core installation)
- affected 6.3.9600.0 – < 6.3.9600.22318
Microsoft · Windows Server 2016
- affected 10.0.14393.0 – < 10.0.14393.7606
Microsoft · Windows Server 2016 (Server Core installation)
- affected 10.0.14393.0 – < 10.0.14393.7606
Microsoft · Windows Server 2019
- affected 10.0.17763.0 – < 10.0.17763.6659
Microsoft · Windows Server 2019 (Server Core installation)
- affected 10.0.17763.0 – < 10.0.17763.6659
Microsoft · Windows Server 2022
- affected 10.0.20348.0 – < 10.0.20348.2966
Microsoft · Windows Server 2022, 23H2 Edition (Server Core installation)
- affected 10.0.25398.0 – < 10.0.25398.1308
Microsoft · Windows Server 2025
- affected 10.0.26100.0 – < 10.0.26100.2605
Microsoft · Windows Server 2025 (Server Core installation)
- affected 10.0.26100.0 – < 10.0.26100.2605
References (4)
- Windows Common Log File System Driver Elevation of Privilege Vulnerability (opens in a new tab)vendor-advisorypatch
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-49138 (opens in a new tab)government-resource
- https://www.exploit-db.com/exploits/52270 (opens in a new tab)
- https://packetstorm.news/files/id/190585/ (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- CISA KEV catalog (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2024-49138)Record last updated .