Out-of-bounds read in Windows and Windows Server - CVE-2026-45606
Published: June 10, 2026
Vulnerability identifier: #VU134261
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-45606
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Microsoft
Affected software:
Windows
Windows Server
Windows
Windows Server
Detailed vulnerability description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition in Microsoft UxTheme Library (uxtheme.dll). A local user can trigger an out-of-bounds read error and cause a denial of service condition on the system.
How to mitigate CVE-2026-45606
Install updates from vendor's website.