Microsoft Windows Common Log File System (CLFS) Driver Heap-Based Buffer Overflow Vulnerability

Added to KEV
2025-05-13
Federal due date
2025-06-03
Vendor
Microsoft
Product
Windows
EPSS
78.6th percentile (score 0.011, as of 2026-06-08)
NVD CVSS v3.1
Ransomware use
Unknown
Upstream
https://nvd.nist.gov/vuln/detail/CVE-2025-32706

CISA short description

Microsoft Windows Common Log File System (CLFS) Driver contains a heap-based buffer overflow vulnerability that allows an authorized attacker to elevate privileges locally.

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.

EPSS percentile is the FIRST.org exploit-probability ranking as of the date noted above; it moves daily. CVSS reflects NVD's analysis at time of publication.