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CVE-2021-21166

Known Exploited (CISA KEV)HIGH

8.8

CVSS Severity Score

EPSS Score46.6540%

EPSS Percentile88.82th

PublishedMar 9, 2021

Last ModifiedOct 24, 2025

Vulnerability Description

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.

Affected Platforms (CPE)

📦

Google

Chrome

< 89.0.4389.72

💻

Fedoraproject

Fedora

= 32

💻

Fedoraproject

Fedora

= 33

💻

Fedoraproject

Fedora

= 34

💻

Debian

Debian Linux

= 10.0

References & Advisories

🔗 https://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop.html

🔗 https://crbug.com/1177465

🔗 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BBT54RKAE5XLMWSHLVUKJ7T2XHHYMXLH/

🔗 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FE5SIKEVYTMDCC5OSXGOM2KRPYLHYMQX/

🔗 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LCIDZ77XUDMB2EBPPWCQXPEIJERDNSNT/

🔗 https://security.gentoo.org/glsa/202104-08

🔗 https://www.debian.org/security/2021/dsa-4886

🔗 https://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop.html

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