Security Feature Bypass in Microsoft Edge by Elevation of Privileges

CVE-2026-21223

What is CVE-2026-21223?

A vulnerability in Microsoft Edge allows non-administrator local users to execute privileged update commands through the IElevatorEdge interface. By invoking the LaunchUpdateCmdElevatedAndWait method, these users can alter critical system registry settings related to Windows Virtualization-Based Security (VBS). This manipulation enables them to disable essential protections such as Credential Guard and Hypervisor-protected Code Integrity, thereby bypassing vital security measures designed to safeguard the operating system.

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