Actively exploited in the wild
Google Chromium Race Condition Vulnerability
Google - Chromium · Listed in the CISA KEV since 2021-11-03. This indicates confirmed attacks in production environments.
Required action: Apply updates per vendor instructions.
CVE-2021-21166
HighCVSS 8.8KEVSummary
A data race vulnerability exists in audio in Google Chrome prior to 89.0.4389.72. 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 89.0.4389.72 or later.
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Original NVD description (English source)
Data race in audio in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.