CVE-2024-49138 Microsoft Windows Common Log File System (CLFS) Driver Heap-Based Buffer Overflow
A heap-based buffer overflow in the Windows Common Log File System driver allows attackers to escalate privileges on affected systems.
- Exploited in the wild
- Since 10 Dec 2024
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-49138?
CVE-2024-49138 is a high-severity memory corruption vulnerability in Microsoft Windows 10 1507, published on 10 Dec 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Windows Common Log File System Driver Elevation of Privilege Vulnerability
Weakness: CWE-122
Which versions are affected by CVE-2024-49138?
It affects 15 products.
Products include Microsoft Windows 10 1507, Microsoft Windows 10 1607, Microsoft Windows 10 1809, Microsoft Windows 10 21h2, Microsoft Windows 10 22h2, Microsoft Windows 11 22h2 and 9 more.
How do I fix CVE-2024-49138?
No fix has been published for CVE-2024-49138 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 31 Dec 2024.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2024-49138 being exploited?
Yes. Attackers have exploited CVE-2024-49138 in the wild since at least 10 Dec 2024.
Public exploit code: 1 Exploit-DB entry and 13 proofs of concept on GitHub.
Other vulnerabilities in Microsoft Windows 10 1507
- CVE-2017-8543 Microsoft Windows Search Remote Code Execution
- CVE-2025-33053 Microsoft Windows External Control of File Name or Path
- CVE-2025-33073 Microsoft Windows SMB Client Improper Access Control
- CVE-2024-49039 Microsoft Windows Task Scheduler Privilege Escalation
- CVE-2024-43461 Microsoft Windows MSHTML Platform Spoofing
Sources
Also known as GHSA-h4hx-5g7m-p3hc.