CISA-confirmed known exploited vulnerability

CVE-2023-23376

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

Microsoft · Windows

Vulnerability details

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

Added to CISA KEV: 2023-02-14

Ransomware campaign use: Known

CISA due date: 2023-03-07

Defensive guidance from CISA

Apply updates per vendor instructions.

This is the source's required-action field, not an independently validated patch procedure. Refer to the vendor for exact affected versions and fixes.

Source catalog date: 2026-11-06T19:44:45.1797Z · Last retrieved: 2026-11-06 21:02:26 UTC

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