Skip to content
OpenAdvisories
High MSRC-CVE-2026-21223 1 CVE

Microsoft Edge (Chromium-based) Security Feature Bypass Vulnerability

Published Jan 16, 2026 · Updated Feb 19, 2026 · Revision 2

Summary

Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.

Details

What kind of security feature could be bypassed by successfully exploiting this vulnerability?
An authenticated local attacker can disable or enable Windows VBS without administrative privileges, resulting in bypass of platform security hardening. This does not grant direct code execution as another user but weakens system security guarantees, enabling follow‑on attacks.

What is the version information for this release?
144.0.3719.82: 144.0.3719.82, 01/16/2026: 01/16/2026, 144.0.7559.60: 144.0.7559.60

According to the CVSS metrics, successful exploitation of this vulnerability could lead to major loss of confidentiality (C:H) and integrity (I:H). What does that mean for this vulnerability?
Virtualization-Based Security (VBS) safeguards credentials by isolating them within a secure environment. Disabling VBS reduces this isolation, compromising both confidentiality and integrity. It also weakens essential platform protections such as Credential Guard, Hypervisor-Protected Code Integrity (HVCI), and the Secure Kernel, resulting in a security feature bypass.

Security updates
144.0.3719.82 — https://docs.microsoft.com/en-us/DeployEdge/microsoft-edge-relnotes-security

Vulnerabilities 1

Revision history

  1. #2

    Updated information to include CVSS scores. This is an informational change only.

  2. #1

    Information published.

References