CVE-2026-21223: Microsoft Edge Chromium

High severity, CVSS 7.1. EPSS: 0.3% chance of exploitation in the next 30 days.

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

Affected products

• Microsoft Edge Chromium: before 144.0.3719.82 (fixed in 144.0.3719.82)

Published 2026-01-16. Last modified 2026-06-17.