Windows Common Log File System Driver Elevation of Privilege Vulnerability

Summary

CVE	CVE-2023-23376
State	PUBLISHED
Assigner	microsoft
Source Priority	CVE Program / NVD first with legacy fallback
Published	2023-02-14 20:15:16 UTC
Updated	2026-08-05 05:16:35 UTC
Description	Windows Common Log File System Driver Elevation of Privilege Vulnerability

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from [email protected]

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

EPSS: 0.108530000 probability, percentile 0.954080000 (date 2026-08-04)

CISA KEV: Listed on 2023-02-14; due 2023-03-07; ransomware use Known

Problem Types: CWE-122 | CWE-787 | CWE-122 CWE-122: Heap-based Buffer Overflow

Version	Source	Type	Score	Severity	Vector
3.1	[email protected]	Secondary	7.8	HIGH	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`
3.1	CNA	CVSS	7.8	HIGH	`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`

CVSS v3.1 Breakdown

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

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

CISA Known Exploited Vulnerability

Vendor	Microsoft
Product	Windows
Name	Microsoft Windows Common Log File System (CLFS) Driver Privilege Escalation Vulnerability
Required Action	Apply updates per vendor instructions.
Notes	https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2023-23376; https://nvd.nist.gov/vuln/detail/CVE-2023-23376

NVD Known Affected Configurations (CPE 2.3)

Type	Vendor	Product	Version	Update	Edition	Language
Operating System	Microsoft	Windows 10 1507	All	All	All	All
Operating System	Microsoft	Windows 10 1607	All	All	All	All
Operating System	Microsoft	Windows 10 1809	All	All	All	All
Operating System	Microsoft	Windows 10 20h2	All	All	All	All
Operating System	Microsoft	Windows 10 21h2	All	All	All	All
Operating System	Microsoft	Windows 10 22h2	All	All	All	All
Operating System	Microsoft	Windows 11 21h2	All	All	All	All
Operating System	Microsoft	Windows 11 22h2	All	All	All	All
Operating System	Microsoft	Windows Server 2008	-	sp2	All	All
Operating System	Microsoft	Windows Server 2008	r2	sp1	All	All
Operating System	Microsoft	Windows Server 2012	-	All	All	All
Operating System	Microsoft	Windows Server 2012	r2	All	All	All
Operating System	Microsoft	Windows Server 2016	All	All	All	All
Operating System	Microsoft	Windows Server 2019	All	All	All	All
Operating System	Microsoft	Windows Server 2022	All	All	All	All

Vendor Declared Affected Products

Source	Vendor	Product	Version	Platforms
CNA	Microsoft	Windows 10 Version 1809	affected 10.0.17763.0 10.0.17763.4010 custom	32-bit Systems, x64-based Systems
CNA	Microsoft	Windows 10 Version 1809	affected 10.0.0 10.0.17763.4010 custom	ARM64-based Systems
CNA	Microsoft	Windows Server 2019	affected 10.0.17763.0 10.0.17763.4010 custom	x64-based Systems
CNA	Microsoft	Windows Server 2019 Server Core Installation	affected 10.0.17763.0 10.0.17763.4010 custom	x64-based Systems
CNA	Microsoft	Windows Server 2022	affected 10.0.20348.0 10.0.20348.1547 custom	x64-based Systems
CNA	Microsoft	Windows 10 Version 20H2	affected 10.0.0 10.0.19042.2604 custom	32-bit Systems, ARM64-based Systems
CNA	Microsoft	Windows 11 Version 21H2	affected 10.0.0 10.0.22621.1574 custom	x64-based Systems, ARM64-based Systems
CNA	Microsoft	Windows 10 Version 21H2	affected 10.0.19043.0 10.0.19044.2604 custom	32-bit Systems, ARM64-based Systems, x64-based Systems
CNA	Microsoft	Windows 11 Version 22H2	affected 10.0.22621.0 10.0.22621.1265 custom	ARM64-based Systems, x64-based Systems
CNA	Microsoft	Windows 10 Version 22H2	affected 10.0.19045.0 10.0.19045.2604 custom	x64-based Systems, ARM64-based Systems, 32-bit Systems
CNA	Microsoft	Windows 10 Version 1507	affected 10.0.10240.0 10.0.10240.19747 custom	32-bit Systems, x64-based Systems
CNA	Microsoft	Windows 10 Version 1607	affected 10.0.14393.0 10.0.14393.5717 custom	32-bit Systems, x64-based Systems
CNA	Microsoft	Windows Server 2016	affected 10.0.14393.0 10.0.14393.5717 custom	x64-based Systems
CNA	Microsoft	Windows Server 2016 Server Core Installation	affected 10.0.14393.0 10.0.14393.5717 custom	x64-based Systems
CNA	Microsoft	Windows Server 2008 Service Pack 2	affected 6.0.6003.0 6.0.6003.21915 custom	32-bit Systems
CNA	Microsoft	Windows Server 2008 Service Pack 2 Server Core Installation	affected 6.0.6003.0 6.0.6003.21915 custom	32-bit Systems, x64-based Systems
CNA	Microsoft	Windows Server 2008 Service Pack 2	affected 6.0.6003.0 6.0.6003.21915 custom	x64-based Systems
CNA	Microsoft	Windows Server 2008 R2 Service Pack 1	affected 6.1.7601.0 6.1.7601.26366 custom	x64-based Systems
CNA	Microsoft	Windows Server 2008 R2 Service Pack 1 Server Core Installation	affected 6.1.7601.0 6.1.7601.26366 custom	x64-based Systems
CNA	Microsoft	Windows Server 2012	affected 6.2.9200.0 6.2.9200.24116 custom	x64-based Systems
CNA	Microsoft	Windows Server 2012 Server Core Installation	affected 6.2.9200.0 6.2.9200.24116 custom	x64-based Systems
CNA	Microsoft	Windows Server 2012 R2	affected 6.3.9600.0 6.3.9600.20821 custom	x64-based Systems
CNA	Microsoft	Windows Server 2012 R2 Server Core Installation	affected 6.3.9600.0 6.3.9600.20821 custom	x64-based Systems

References

Reference	Source	Link	Tags
www.cisa.gov/known-exploited-vulnerabilities-catalog	134c704f-9b21-4f2e-91b3-4a467353bcc0	www.cisa.gov	US Government Resource
Security Update Guide - Microsoft Security Response Center	af854a3a-2127-422b-91ae-364da2661108	msrc.microsoft.com	Patch, Vendor Advisory
CVE Program record	CVE.ORG	www.cve.org	canonical
NVD vulnerability detail	NVD	nvd.nist.gov	canonical, analysis
CISA Known Exploited Vulnerabilities catalog	CISA	www.cisa.gov	kev

No vendor comments have been submitted for this CVE.

Additional Advisory Data

Source	Time	Event
ADP	2023-02-14T00:00:00.000Z	CVE-2023-23376 added to KEV
ADP	2023-02-14T00:00:00.000Z	CVE-2023-23376 added to CISA KEV

Legacy QID Mappings

91979 Microsoft Windows Security Update for February 2023
91988 Microsoft Azure Stack Hub Security Updates for February 2023