Microsoft Windows CLFS Driver Privilege Escalation Vulnerability (CVE-2022-24521)
Severity: high · Patch status: patched · Since 2022-04-13 · CVE-2022-24521
Microsoft Windows Common Log File System (CLFS) Driver contains an unspecified vulnerability that allows for privilege escalation. CISA added CVE-2022-24521 to its Known Exploited Vulnerabilities catalog on Apr 13, 2022, which means attackers are exploiting it in the wild. CISA reports known use in ransomware campaigns.
What to do
- Apply updates per vendor instructions.
- US federal agencies must remediate by May 4, 2022 (BOD 22-01); treat that as the outer limit.
Sources
All live incidents on Threat Watch
