Microsoft Edge Elevation Service exposes a privileged COM interface that inadequately validates the privileges of the calling process. A standard (non‑administrator) local user can invoke the IElevatorEdge interface method LaunchUpdateCmdElevatedAndWait, causing the service to execute privileged update commands as LocalSystem.
This allows a non‑administrator to enable or disable Windows Virtualization‑Based Security (VBS) by modifying protected system registry keys under HKLM\SYSTEM\CurrentControlSet\Control\DeviceGuard. Disabling VBS weakens critical platform protections such as Credential Guard, Hypervisor‑protected Code Integrity (HVCI), and the Secure Kernel, resulting in a security feature bypass.
References
| Link | Resource |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21223 | Vendor Advisory |
Configurations
History
03 Feb 2026, 18:42
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Microsoft
Microsoft edge Chromium |
|
| References | () https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21223 - Vendor Advisory | |
| CPE | cpe:2.3:a:microsoft:edge_chromium:*:*:*:*:*:*:*:* |
Information
Published : 2026-01-16 22:16
Updated : 2026-02-03 18:42
NVD link : CVE-2026-21223
Mitre link : CVE-2026-21223
CVE.ORG link : CVE-2026-21223
JSON object : View
Products Affected
microsoft
- edge_chromium
CWE
CWE-269
Improper Privilege Management