Applied Cybernetics Group
Threat intel → detection pipeline
Friday, September 18, 2026
Data as of 13:09 UTC

known ransomware use

Microsoft Windows Common Log File System (CLFS) Driver Privilege Escalation Vulnerability

Added to KEV
2022-09-14
Federal due date
2022-10-05
Vendor
Microsoft
Product
Windows
EPSS
98.0th percentile (score 0.283, as of 2026-09-16)
NVD CVSS v3.1
7.8 (HIGH)
Ransomware use
Known
ATT&CK
T1059 , T1068 , T1078 · signal rollup
Upstream
https://nvd.nist.gov/vuln/detail/CVE-2022-37969

CISA short description

Microsoft Windows Common Log File System (CLFS) driver contains an unspecified vulnerability that allows for privilege escalation.

Required action

Apply updates per vendor instructions.

NVD description

Windows Common Log File System Driver Elevation of Privilege Vulnerability

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.