CVE-2023-23376

Windows Common Log File System Driver Elevation of Privilege Vulnerability

High 7.8
Exploited: added to CISA KEV 14 Feb 2023
Used in ransomware campaigns

Description

Windows Common Log File System Driver Elevation of Privilege Vulnerability

Key facts

Published: 14 Feb 2023
Last changed: 19 Aug 2026
Assigned by: microsoft
KEV added: 14 Feb 2023
KEV fix due: 7 Mar 2023
Used in ransomware: Yes, according to CISA
EPSS: 10.766% likely to be exploited in the next 30 days, higher than 95.907% of CVEs (scores for 15 Nov 2026)
SSVC (CISA): Exploitation: active; Automatable: no; Technical impact: total

Severity scores

Each score is shown as its source gave it. They are not averaged or merged.

7.8CVSS 3.1, Highfrom the CNA (microsoft)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

What to do

Apply updates per vendor instructions.CISA KEV required action

Historical context and remediation

This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.

No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.

Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.

Read the original CVE record.

Affected products

Vendor	Product	Versions
Microsoft	Windows 10 Version 1507	10.0.10240.0 up to but excluding 10.0.10240.19747 (affected)
Microsoft	Windows 10 Version 1607	10.0.14393.0 up to but excluding 10.0.14393.5717 (affected)
Microsoft	Windows 10 Version 1809	10.0.17763.0 up to but excluding 10.0.17763.4010 (affected)
Microsoft	Windows 10 Version 1809	10.0.0 up to but excluding 10.0.17763.4010 (affected)
Microsoft	Windows 10 Version 20H2	10.0.0 up to but excluding 10.0.19042.2604 (affected)
Microsoft	Windows 10 Version 21H2	10.0.19043.0 up to but excluding 10.0.19044.2604 (affected)
Microsoft	Windows 10 Version 22H2	10.0.19045.0 up to but excluding 10.0.19045.2604 (affected)
Microsoft	Windows 11 version 21H2	10.0.0 up to but excluding 10.0.22621.1574 (affected)
Microsoft	Windows 11 version 22H2	10.0.22621.0 up to but excluding 10.0.22621.1265 (affected)
Microsoft	Windows Server 2008 Service Pack 2	6.0.6003.0 up to but excluding 6.0.6003.21915 (affected)
Microsoft	Windows Server 2008 R2 Service Pack 1	6.1.7601.0 up to but excluding 6.1.7601.26366 (affected)
Microsoft	Windows Server 2008 R2 Service Pack 1 (Server Core installation)	6.1.7601.0 up to but excluding 6.1.7601.26366 (affected)
Microsoft	Windows Server 2008 Service Pack 2	6.0.6003.0 up to but excluding 6.0.6003.21915 (affected)
Microsoft	Windows Server 2008 Service Pack 2 (Server Core installation)	6.0.6003.0 up to but excluding 6.0.6003.21915 (affected)
Microsoft	Windows Server 2012	6.2.9200.0 up to but excluding 6.2.9200.24116 (affected)
Microsoft	Windows Server 2012 (Server Core installation)	6.2.9200.0 up to but excluding 6.2.9200.24116 (affected)
Microsoft	Windows Server 2012 R2	6.3.9600.0 up to but excluding 6.3.9600.20821 (affected)
Microsoft	Windows Server 2012 R2 (Server Core installation)	6.3.9600.0 up to but excluding 6.3.9600.20821 (affected)
Microsoft	Windows Server 2016	10.0.14393.0 up to but excluding 10.0.14393.5717 (affected)
Microsoft	Windows Server 2016 (Server Core installation)	10.0.14393.0 up to but excluding 10.0.14393.5717 (affected)
Microsoft	Windows Server 2019	10.0.17763.0 up to but excluding 10.0.17763.4010 (affected)
Microsoft	Windows Server 2019 (Server Core installation)	10.0.17763.0 up to but excluding 10.0.17763.4010 (affected)
Microsoft	Windows Server 2022	10.0.20348.0 up to but excluding 10.0.20348.1547 (affected)

Timeline

14 Feb 2023 CVE-2023-23376 added to KEV
14 Feb 2023 CVE-2023-23376 added to CISA KEV
14 Feb 2023 Added to the CISA KEV catalogue
14 Feb 2023 Published

Weakness

CWE-122

References

Windows Common Log File System Driver Elevation of Privilege Vulnerabilityvendor-advisorypatch