CVE-2021-30554
Google Chromium WebGL Use-After-Free Vulnerability
Google Chromium WebGLApplications & CMS
CVSS
8.8HighExploit odds (EPSS)7.37%Chance of exploitation activity in the next 30 days, higher than 94% of CVEs. Scored 23 Oct 2026FIRST EPSS
CISA required actionApply updates per vendor instructions. CISA KEV
What fixes it
- 91.0.4472.114ChromeCVE List
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
Timeline
Description
Google Chromium WebGL contains a use-after-free vulnerability that allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.
Text from CVE List
Affected versions 1
- Chromeaffected: unspecified before 91.0.4472.114CVE List
References 7
- security.gentoo.org/glsa/202107-06Advisoryvia CVE List
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PAT6EOXVQFE6JFMFQF4IKAOUQSHMHL54/Advisoryvia CVE List
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ETMZL6IHCTCTREEL434BQ4THQ7EOHJ43/Advisoryvia CVE List
- nvd.nist.gov/vuln/detail/CVE-2021-30554Referencevia CISA KEV
- crbug.com/1219857Referencevia CVE List
- chromereleases.googleblog.com/2021/06/stable-channel-update-for-desktop_17.htmlReferencevia CVE List
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30554Referencevia CVE List