MSRC-CVE-2023-38146 — Windows Themes Remote Code Execution Vulnerability

Summary

Impact: Remote Code Execution. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.

Details

How could an attacker exploit this vulnerability?
An attacker would need to convince a targeted user to load a Windows Themes file on a vulnerable system with access to an attacker-controlled SMB share.

Security updates
10.0.22000.2416 — https://support.microsoft.com/help/5030217
10.0.22621.2283 — https://support.microsoft.com/help/5030219

Vulnerabilities 1

High 8.8

CVE-2023-38146 Public exploit EPSS 37%

Windows Themes Remote Code Execution Vulnerability

Windows Themes Remote Code Execution Vulnerability

Microsoft Windows 11 version 22H2 Windows 11 version 21H2 Windows

Sep 12, 2023

Revision history

2024-06-26 #2
Updated acknowledgment. This is an informational change only.
2023-09-12 #1
Information published.

References

CVE-2023-38146 Windows Themes Remote Code Execution Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-38146
Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
Common Vulnerability Scoring System
https://www.first.org/cvss