CVE-2022-24521 Microsoft Windows CLFS Driver Privilege Escalation
An attacker can exploit a memory corruption flaw in the Windows Common Log File System Driver to gain elevated privileges.
- Exploited in the wild
- Since 13 Apr 2022
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2022-24521?
CVE-2022-24521 is a high-severity memory corruption vulnerability in Microsoft Windows 10 1507, published on 15 Apr 2022. 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-787
Which versions are affected by CVE-2022-24521?
It affects 17 products.
Products include Microsoft Windows 10 1507, Microsoft Windows 10 1607, Microsoft Windows 10 1809, Microsoft Windows 10 1909, Microsoft Windows 10 20h2, Microsoft Windows 10 21h1 and 11 more.
How do I fix CVE-2022-24521?
No fix has been published for CVE-2022-24521 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 4 May 2022.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2022-24521 being exploited?
Yes. Attackers have exploited CVE-2022-24521 in the wild since at least 13 Apr 2022, including in ransomware campaigns.
Public exploit code: 1 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-59qr-cc8f-v837.