August 11, 2026—KB5120386 (Monthly Rollup)

August 11, 2026—KB5120386 Monthly Rollup Applies To Windows Server 2012 ESU Important The installation of this Extended Security Update ESU might fail when you try to install it on an Azure Arc-enabled device that is running Windows Server 2012. For a successful installation, please make sure all...

KB5120386: Windows Server 2012 Security Update (August 2026)

The remote Windows host is missing security update 5120386. It is, therefore, affected by multiple vulnerabilities - Stack-based buffer overflow in Windows DNS allows an unauthorized attacker to execute code over a network. CVE-2026-62878 - Use after free in Windows Deployment Services allows an...

2026-08 Security Monthly Quality Rollup for Windows Server 2012 for x64-based Systems (KB5120386)

A security issue has been identified in a Microsoft software product that could affect your system. You can help protect your system by installing this update from Microsoft. For a complete listing of the issues that are included in this update, see the associated Microsoft Knowledge Base article...