Microsoft Windows Taskbar Live Information Disclosure Vulnerability

A vulnerability in Windows Taskbar Live Preview allows unauthorized information disclosure. This issue arises when a user hovers over a taskbar preview and then locks the screen or puts the device to sleep, potentially exposing application windows on the lock screen. The vulnerability affects several Windows versions, including Windows 10, Windows 11, Windows Server 2016, and Windows Server 2022.

Impact

Exploitation of this vulnerability could lead to unauthorized access to sensitive information or privileges belonging to the user.

Remediation

Users can apply the security update KB5066836 for Windows 10 and Windows Server 2016. For Windows 11, the security update KB5066835 is available. Windows Server 2022 users can also apply the security update KB5066780.