CVE-2021-30523: Fedoraproject Fedora

High severity, CVSS 8.8. EPSS: 1.1% chance of exploitation in the next 30 days.

Use after free in WebRTC in Google Chrome prior to 91.0.4472.77 allowed a remote attacker to potentially exploit heap corruption via a crafted SCTP packet.

Affected products

• Fedoraproject Fedora: version 33 only; version 34 only
• Google Chrome: before 91.0.4472.77 (fixed in 91.0.4472.77)

Published 2021-06-07. Last modified 2026-06-17.