Microsoft UxTheme Library Denial-of-Service Vulnerability

A denial-of-service vulnerability has been identified in the Microsoft UxTheme Library (uxtheme.dll). This issue allows an authorized attacker to cause a local denial-of-service condition by exploiting an out-of-bounds read.

Impact

Exploitation of this vulnerability leads to a local denial-of-service condition, causing affected systems to become unresponsive or unavailable.

Remediation

Users can apply the security update for this vulnerability, which is included in the June 2026 Monthly Rollup. Instructions for downloading this update are available on the Microsoft Update Catalog.