CVE-2023-23376

HIGH7.8

CISA KEV

Published 2023-02-14 · Updated 2026-08-19 · Source secure@microsoft.com

Summary

CVE-2023-23376 is a high-severity (CVSS 7.8) vulnerability in Microsoft Windows. CISA added it to the Known Exploited Vulnerabilities catalog on February 14, 2023, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by March 7, 2023. CISA also lists it as known to be used in ransomware campaigns, so it should be prioritised accordingly. Microsoft has 390 vulnerabilities in the KEV catalog, 117 of them linked to ransomware.

All 390 known-exploited Microsoft vulnerabilities →

Description

Windows Common Log File System Driver Elevation of Privilege Vulnerability

CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE-122CWE-787

CISA Known-Exploited Vulnerability

Product: Microsoft — Windows

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

Date added: 2023-02-14 · Due: 2023-03-07

USED IN RANSOMWARE

Required action: Apply updates per vendor instructions.

References

View on NVD

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