CVE-2026-88097: Microsoft Edge Chromium

High severity, CVSS 7.8. EPSS: 0.3% chance of exploitation in the next 30 days.

Use after free in Microsoft Edge (Chromium-based) allows an unauthorized attacker to elevate privileges locally.

Affected products

• Microsoft Edge Chromium: before 153.0.4234.46 (fixed in 153.0.4234.46)

Published 2026-09-18. Last modified 2026-09-24.