The Windows 11 cumulative updates KB5094126 (for 25H2/24H2) and KB5093998 (for 23H2) released on June 9, 2026, contain security patches for vulnerabilities discovered in previous months, along with bug fixes and new features. These updates improve system performance, reliability of Windows Hello biometric sign-in, taskbar functionality, and introduce features like Shared Audio using Bluetooth LE Audio and Multi-App Camera support. The updates also enhance Task Manager visibility for Neural Processing Units and improve USB device reliability. Microsoft has confirmed these updates are stable with no known issues and are mandatory to maintain system security.

The updates address multiple security vulnerabilities in Windows 11 versions 25H2/24H2 and 23H2, reducing the risk of exploitation. They also fix various bugs and improve system performance and feature reliability. No known exploits targeting these vulnerabilities have been reported in the wild as of the update release date. Applying these updates helps maintain the security posture and operational stability of Windows 11 systems.

A fix is available through the official Microsoft cumulative updates KB5094126 and KB5093998 for Windows 11 versions 25H2/24H2 and 23H2. Users should install these updates promptly via Windows Update or manually from the Microsoft Update Catalog to address the security vulnerabilities and benefit from the included improvements. Microsoft has not reported any new issues with these updates, indicating they are safe to deploy.