2025-08 Cumulative Update for Microsoft server operating system version 21H2 for x64-based Systems (KB5063880)

Install this update to resolve issues in Windows. For a complete listing of the issues that are included in this update, see the associated Microsoft Knowledge Base article for more information. After you install this item, you may have to restart your computer...

KB5063880: Windows Server 2022 / Azure Stack HCI 22H2 Security Update (August 2025)

The remote Windows host is missing security update 5063880 or hot patch 5063812. It is, therefore, affected by multiple vulnerabilities - Heap-based buffer overflow in Windows GDI+ allows an unauthorized attacker to execute code over a network. CVE-2025-53766 - Missing synchronization in Windows...