CVE-2021-30632: Google Chromium V8 Out-of-Bounds Write Vulnerability

High severity, CVSS 8.8. Actively exploited: in CISA KEV since 2021-11-03. EPSS: 63.2% chance of exploitation in the next 30 days.

Out of bounds write in V8 in Google Chrome prior to 93.0.4577.82 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Affected products

• Fedoraproject Fedora: version 33 only; version 35 only
• Google Chrome: before 93.0.4577.82 (fixed in 93.0.4577.82)

Published 2021-10-08. Last modified 2026-06-17.