Actively exploited in the wild
Google Chromium Blink Use-After-Free Vulnerability
Google - Chromium Blink · Listed in the CISA KEV since 2021-11-03. This indicates confirmed attacks in production environments.
Required action: Apply updates per vendor instructions.
CVE-2021-21193
HighCVSS 8.8KEVSummary
A use-after-free vulnerability exists in Blink in Google Chrome prior to 89.0.4389.90. A remote attacker could potentially exploit heap corruption via a crafted HTML page.
Risk Assessment
An attacker could remotely execute arbitrary code or cause a browser crash, potentially leading to system compromise.
Recommendation
Update Google Chrome to version 89.0.4389.90 or later.
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Original NVD description (English source)
Use after free in Blink in Google Chrome prior to 89.0.4389.90 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.