CVE-2026-44814: Microsoft Windows 11 26h1

Medium severity, CVSS 5.5. EPSS: 0.4% chance of exploitation in the next 30 days.

Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to disclose information locally.

Affected products

• Microsoft Windows 11 26h1: before 10.0.28000.2269 (fixed in 10.0.28000.2269)

Published 2026-06-09. Last modified 2026-07-23.