CVE-2021-21121: Google Chrome

Critical severity, CVSS 9.6. EPSS: 6.2% chance of exploitation in the next 30 days.

Use after free in Omnibox in Google Chrome on Linux prior to 88.0.4324.96 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page.

Affected products

• Google Chrome: before 88.0.4324.96 (fixed in 88.0.4324.96)
• Microsoft Edge Chromium: before 88.0.705.50 (fixed in 88.0.705.50)

Published 2021-02-09. Last modified 2026-06-17.