Actively exploited in the wild
Google Chromium WebGL Use-After-Free Vulnerability
Google - Chromium WebGL · Listed in the CISA KEV since 2021-11-03. This indicates confirmed attacks in production environments.
Required action: Apply updates per vendor instructions.
CVE-2021-30554
HighCVSS 8.8KEVSummary
Use-after-free in WebGL in Google Chrome prior to 91.0.4472.114 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
Risk Assessment
Enables remote code execution or browser compromise when a user visits a malicious page, potentially leading to full system takeover.
Recommendation
Update Google Chrome to version 91.0.4472.114 or later and enforce updates across the organization.
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Original NVD description (English source)
Use after free in WebGL in Google Chrome prior to 91.0.4472.114 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.