CVE-2026-58299: Microsoft Edge Chromium

High severity, CVSS 7.5. EPSS: 0.5% chance of exploitation in the next 30 days.

Time-of-check time-of-use (toctou) race condition in Microsoft Edge for Android allows an unauthorized attacker to execute code 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.