CVE-2026-21223 HIGH

CVE-2026-21223: Microsoft Edge (Chromium-based) Security Feature Bypass Vulnerability

Vendor Microsoft
Product Microsoft Edge (Chromium-based)
Weakness CWE-269
Published January 16, 2026
Last update April 1, 2026

CVSS base score

7.1/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C

What the vulnerability does

01Description

Improper privilege management in Microsoft Edge (Chromium-based) allows an authorized attacker to bypass a security feature locally.

Key dates

02Disclosure timeline

January 16, 2026 CVE published
April 1, 2026 Record updated