CVE-2021-30562: Google Chrome

High severity, CVSS 8.8. EPSS: 1.3% chance of exploitation in the next 30 days.

Use after free in WebSerial in Google Chrome prior to 91.0.4472.164 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Affected products

• Google Chrome: before 91.0.4472.164 (fixed in 91.0.4472.164)

Published 2021-08-03. Last modified 2026-06-17.