2026-08 Cumulative Update for Microsoft server operating system version 21H2 for x64-based Systems (KB5120242)

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...

2026-08 Cumulative Update for Windows 10 Version 1607 for x86-based Systems (KB5120418)

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...

Windows Installer Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally...

Windows Bind Filter Driver Elevation of Privilege Vulnerability

Use after free in Windows Bind Filter Driver allows an authorized attacker to elevate privileges locally...

Windows Installer Elevation of Privilege Vulnerability

Incorrect authorization in Windows Installer allows an authorized attacker to elevate privileges locally...

Windows USB Driver Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows USB Driver allows an authorized attacker to elevate privileges locally...

Capability Access Management Service (camsvc) Elevation of Privilege Vulnerability

Use after free in Capability Access Management Service camsvc allows an authorized attacker to elevate privileges locally...

Windows Secure Socket Tunneling Protocol (SSTP) Remote Code Execution Vulnerability

Double free in Windows Secure Socket Tunneling Protocol SSTP allows an unauthorized attacker to execute code over a network...

Windows Display Enhancement Service Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Display Enhancement Service allows an authorized attacker to elevate privileges locally...

Windows Event Logging Service Information Disclosure Vulnerability

Use of uninitialized resource in Windows Event Logging Service allows an authorized attacker to disclose information locally...

August 11, 2026—KB5120233 (OS Build 26100.33296)

None None...

August 11, 2026—KB5120386 (Monthly Rollup)

None None...

Windows Autopilot Elevation of Privilege Vulnerability

Use after free in Windows Autopilot allows an authorized attacker to elevate privileges locally...

Windows GDI+ Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows GDI+ allows an authorized attacker to execute code locally...

Windows DWM Core Library Elevation of Privilege Vulnerability

Access of resource using incompatible type 'type confusion' in Windows DWM Core Library allows an authorized attacker to elevate privileges locally...

Windows NTFS Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows NTFS allows an authorized attacker to elevate privileges locally...

Windows DWM Core Library Information Disclosure Vulnerability

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

Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally...

Windows Telephony Service Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Telephony Service allows an authorized attacker to elevate privileges locally...

Windows Message Queuing Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Message Queuing allows an authorized attacker to elevate privileges locally...