CVSS v3
8.8
HIGH
EPSS Score
36.3%
exploit probability
CISA KEV
Yes
known exploited
Exploitation
—
SSVC status
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.
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.
Yes. CVE-2021-21166 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 11/17/2021.
CVE-2021-21166 has a CVSS v3 base score of 8.8 (HIGH severity).
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Ranked by exploit probability (EPSS).