CVE-2021-21143: Fedoraproject Fedora

High severity, CVSS 8.8. EPSS: 0.8% chance of exploitation in the next 30 days.

Heap buffer overflow in Extensions in Google Chrome prior to 88.0.4324.146 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted Chrome Extension.

Affected products

• Fedoraproject Fedora: version 32 only; version 33 only
• Google Chrome: before 88.0.4324.146 (fixed in 88.0.4324.146)

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