CVE-2023-23376
KEVRansomware UseMicrosoft Windows Common Log File System (CLFS) Driver Privilege Escalation Vulnerability
Description
Microsoft Windows Common Log File System (CLFS) driver contains an unspecified vulnerability that allows for privilege escalation.
Windows Common Log File System Driver Elevation of Privilege Vulnerability
CVSS 3.1 vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HPublishedFeb 14, 2023
Last modifiedAug 19, 2026
Added to KEVFeb 14, 2023
Remediation dueMar 7, 2023
References
- msrc.microsoft.com/update-guide/vulnerability/CVE-2023-23376PatchVendor Advisory
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-23376US Government Resource
0 recent articles mention this CVE
80
Risk assessment · Critical
Actively exploited and used by ransomware crews. Patch immediately.
- Exploitation
- Confirmed in the wild (CISA KEV)
- Federal remediation deadline
- Overdue by 1329 days
- Ransomware
- Used in known ransomware campaigns
- CVSS
- 7.8 HIGH
- EPSS (30-day exploit probability)
- 10.9% · top 4% of all CVEs
- Weakness
- CWE-122
Recommended actions
- 1.Apply updates per vendor instructions.
- 2.Treat as emergency change: patch or isolate internet-facing instances first.
- 3.Hunt for compromise: review logs for the disclosure window, not just from the patch date.
- 4.Verify offline/immutable backups and segment the affected systems. This flaw is used for ransomware initial access.
Assessment is derived automatically from the live signals above; verify against your own asset inventory.