CVE-2025-55677: Microsoft Windows 11 24h2

High severity, CVSS 7.8. EPSS: 0.4% chance of exploitation in the next 30 days.

Untrusted pointer dereference in Windows Device Association Broker service allows an authorized attacker to elevate privileges locally.

Affected products

• Microsoft Windows 11 24h2: before 10.0.26100.6899 (fixed in 10.0.26100.6899)
• Microsoft Windows 11 25h2: before 10.0.26200.6899 (fixed in 10.0.26200.6899)
• Microsoft Windows Server 2025: before 10.0.26100.6899 (fixed in 10.0.26100.6899)

Published 2025-10-14. Last modified 2026-06-17.