CVE-2025-29824—Microsoft Windows Common Log File System (CLFS) Driver Use-After-Free Vulnerability

Vulnerability Name

Microsoft Windows Common Log File System (CLFS) Driver Use-After-Free Vulnerability

Description

Microsoft Windows Common Log File System (CLFS) Driver contains a use-after-free vulnerability that allows an authorized attacker to elevate privileges locally.

Known To Be Used in Ransomware Campaigns?

Ransomware Status:

KNOWN

Action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Additional Notes

• https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-29824
• https://nvd.nist.gov/vuln/detail/CVE-2025-29824

Related News Articles

• Microsoft Windows Vulnerability Exploited to Deploy PipeMagic RansomExx MalwareAugust 18, 2025
• Ransomware gangs join ongoing SAP NetWeaver attacksMay 14, 2025
• BianLian and RansomExx Exploit SAP NetWeaver Flaw to Deploy PipeMagic TrojanMay 14, 2025
• Microsoft Fixes 78 Flaws, 5 Zero-Days Exploited; CVSS 10 Bug Impacts Azure DevOps ServerMay 14, 2025
• Play ransomware exploited Windows logging flaw in zero-day attacksMay 7, 2025

Related Weaknesses

• CWE-416