CVE DATABASE / CVE-2025-29824

CVE-2025-29824

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

CVSS 7.8 · HIGH ⚠ CISA KEV — ACTIVELY EXPLOITED RANSOMWARE

On the CISA KEV catalog

Confirmed exploited in the wild. Added 2025-04-08. Federal remediation due 2025-04-29.
Required 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.

Summary

Use after free in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally.

CVSS 3.1 breakdown

Base score	7.8 (HIGH)
Vector	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector	LOCAL
Attack complexity	LOW
Privileges required	LOW
User interaction	NONE
Scope	UNCHANGED
Confidentiality	HIGH
Integrity	HIGH
Availability	HIGH

Weakness type (CWE)

CWE-416

Affected products

Microsoft windows 10 1507Microsoft windows 10 1607Microsoft windows 10 1809Microsoft windows 10 21h2Microsoft windows 10 22h2Microsoft windows 11 22h2Microsoft windows 11 23h2Microsoft windows 11 24h2Microsoft windows server 2008Microsoft windows server 2012Microsoft windows server 2016Microsoft windows server 2019Microsoft windows server 2022Microsoft windows server 2022 23h2Microsoft windows server 2025

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References

Data: NIST NVD + CISA KEV. NVD last modified 2025-10-27. Always verify against the vendor advisory before acting.