CVE-2022-37969VulnerabilityPublished 09/14/2022Updated 10/24/2026
CVE-2022-37969: Microsoft Windows Common Log File System (CLFS) Driver Privilege Escalation Vulnerability
Affects Microsoft WindowsSource CISA KEV
Severity
HighNo CVSS score published yet
- Exploitation
Actively exploited – in CISA KEV since 09/14/2022
- KEV deadline
- 10/05/2022
- Ransomware
- Used in ransomware campaigns
- EPSS
- 28.3% chance of exploitation in 30 days – higher than 98% of CVEs
What to do
CISA required action
Apply updates per vendor instructions.
Description
Microsoft Windows Common Log File System (CLFS) driver contains an unspecified vulnerability that allows for privilege escalation.