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CVE-2023-28252

89
FAUCET Score

CVE-2023-28252 is an Elevation of Privilege vulnerability in the Windows Common Log File System (CLFS) Driver, affecting Microsoft Windows products. With a CVSS score of 7.8 (High), it allows a local, low-privileged attacker to achieve full system compromise with high confidentiality, integrity, and availability impacts. This vulnerability is actively exploited in the wild, including by ransomware gangs, and has a publicly available Metasploit exploit module. It has garnered significant community discussion and media coverage, indicating widespread awareness and concern.

Impacted Technologies

VendorProductVersion(s)CPE
< 10.0.10240.19869CPE matchmatch criteria
cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:*:*
< 10.0.14393.5850CPE matchmatch criteria
cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:*:*
< 10.0.17763.4252CPE matchmatch criteria
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:*:*
< 10.0.19042.2846CPE matchmatch criteria
cpe:2.3:o:microsoft:windows_10_20h2:*:*:*:*:*:*:*:*
< 10.0.19044.2846CPE matchmatch criteria
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
48.97%
Probability of exploitation in next 30 days
EPSS Percentile
98.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
Added to KEV · Apr 11, 2023
Metasploit: Windows Common Log File System Driver (clfs.sys) Elevation of Privilege Vulnerability · Apr 11, 2023
This CVE's current EPSS score of 0.4897 is in the 100th percentile among its peer group of 16,994 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (36)

microsoftpatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 1809 for 32-bit SystemsFixed in: 10.0.17763.4252
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 1809 for x64-based SystemsFixed in: 10.0.17763.4252
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 1809 for ARM64-based SystemsFixed in: 10.0.17763.4252
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2019Fixed in: 10.0.17763.4252
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2019 (Server Core installation)Fixed in: 10.0.17763.4252
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2022Fixed in: 10.0.20348.1668
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2022 (Server Core installation)Fixed in: 10.0.20348.1668
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 20H2 for 32-bit SystemsFixed in: 10.0.19042.2846
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 20H2 for ARM64-based SystemsFixed in: 10.0.19042.2846
View patch
microsoftpatch availablevia msrc
Product: Windows 11 version 21H2 for x64-based SystemsFixed in: 10.0.22000.1817
View patch
microsoftpatch availablevia msrc
Product: Windows 11 version 21H2 for ARM64-based SystemsFixed in: 10.0.22000.1817
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 21H2 for 32-bit SystemsFixed in: 10.0.19044.2846
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 21H2 for ARM64-based SystemsFixed in: 10.0.19044.2846
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 21H2 for x64-based SystemsFixed in: 10.0.19044.2846
View patch
microsoftpatch availablevia msrc
Product: Windows 11 Version 22H2 for ARM64-based SystemsFixed in: 10.0.22621.1555
View patch
microsoftpatch availablevia msrc
Product: Windows 11 Version 22H2 for x64-based SystemsFixed in: 10.0.22621.1555
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 22H2 for x64-based SystemsFixed in: 10.0.19045.2846
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 22H2 for ARM64-based SystemsFixed in: 10.0.19045.2846
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 22H2 for 32-bit SystemsFixed in: 10.0.19045.2846
View patch
microsoftpatch availablevia msrc
Product: Windows 10 for 32-bit SystemsFixed in: 10.0.10240.19869
View patch
microsoftpatch availablevia msrc
Product: Windows 10 for x64-based SystemsFixed in: 10.0.10240.19869
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 1607 for 32-bit SystemsFixed in: 10.0.14393.5850
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 1607 for x64-based SystemsFixed in: 10.0.14393.5850
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2016Fixed in: 10.0.14393.5850
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2016 (Server Core installation)Fixed in: 10.0.14393.5850
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2008 for 32-bit Systems Service Pack 2Fixed in: 6.0.6003.22015
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)Fixed in: 6.0.6003.22015
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2008 for x64-based Systems Service Pack 2Fixed in: 6.0.6003.22015
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)Fixed in: 6.0.6003.22015
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2008 R2 for x64-based Systems Service Pack 1Fixed in: 6.1.7601.26466
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)Fixed in: 6.1.7601.26466
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2012Fixed in: 6.2.9200.24216
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2012 (Server Core installation)Fixed in: 6.2.9200.24216
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2012 R2Fixed in: 6.3.9600.20919
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2012 R2 (Server Core installation)Fixed in: 6.3.9600.20919
View patch

Vendor Advisories (1)

microsoft2023-Apr/CVE-2023-28252Important

Windows Common Log File System Driver Elevation of Privilege Vulnerability

Apr 11, 2023

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
packetstormsecurity.com / files/174668/Windows-Common-Log-File-System-Driver-clfs.sys-Privilege-Escalation.html
ExploitThird Party AdvisoryVDB Entry
msrc.microsoft.com / update-guide/vulnerability/CVE-2023-28252
PatchVendor Advisory