Microsoft · Edge · CVE-2026-21223
**Name of the Vulnerable Software and Affected Versions**
Microsoft Edge (affected versions not specified)
**Description**
The Microsoft Edge Elevation Service has a design flaw where a privileged COM interface does not properly check the permissions of the process making the request. A standard local user can use the `LaunchUpdateCmdElevatedAndWait` method of the `IElevatorEdge` interface to run commands with LocalSystem privileges. This allows a non-administrator to modify protected registry keys under `HKLMSYSTEMCurrentControlSetControlDeviceGuard`, specifically to disable Windows Virtualization-Based Security (VBS). Disabling VBS reduces the effectiveness of security features like Credential Guard, Hypervisor-protected Code Integrity (HVCI), and the Secure Kernel, leading to a security bypass.
**Recommendations**
At the moment, there is no information about a newer version that contains a fix for this vulnerability.