CVE-2026-57983: Microsoft Edge Chromium

Critical severity, CVSS 10.0. EPSS: 0.6% chance of exploitation in the next 30 days.

Improper authorization in Microsoft Edge (Chromium-based) allows an unauthorized attacker to bypass a security feature over a network.

Affected products

• Microsoft Edge Chromium: before 150.0.4078.48 (fixed in 150.0.4078.48)

Published 2026-07-03. Last modified 2026-07-07.