CVE-2020-6554: Debian Linux

High severity, CVSS 8.6. EPSS: 0.6% chance of exploitation in the next 30 days.

Use after free in extensions in Google Chrome prior to 84.0.4147.125 allowed a remote attacker to potentially perform a sandbox escape via a crafted Chrome Extension.

Affected products

• Debian Debian Linux: version 10.0 only
• Fedoraproject Fedora: version 33 only
• Google Chrome: before 84.0.4147.125 (fixed in 84.0.4147.125)

Published 2020-09-21. Last modified 2026-06-17.