CVE-2023-38146: Microsoft Windows 11 21h2

High severity, CVSS 8.8. EPSS: 37.4% chance of exploitation in the next 30 days.

Windows Themes Remote Code Execution Vulnerability

Affected products

  • Microsoft Windows 11 21h2: before 10.0.22000.2416 (fixed in 10.0.22000.2416)
  • Microsoft Windows 11 22h2: before 10.0.22621.2275 (fixed in 10.0.22621.2275)

Published 2023-09-12. Last modified 2026-06-17.