Actively exploited · Published Jul 2, 2021 · Assigned by Chrome

CVE-2021-30554

High 8.8 Exploited

In plain English

A high-severity use-after-free in Chrome from Google. Attackers are actively exploiting it in the wild (listed by CISA on November 3, 2021). The chance it is exploited in the next 30 days is estimated at 7.4% (higher than 94% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.8High
Exploit odds (30 days)7.4%top 5.6% of all CVEs
Exploited in the wildYesCISA KEV since Nov 3, 2021
Attack toolingNoneno public tooling known

CISA guidance

Apply updates per vendor instructions.

Federal agencies must remediate by Nov 17, 2021.

Official description

Use after free in WebGL in Google Chrome prior to 91.0.4472.114 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.20chromium91.0.4472.114-r0ALPINE-CVE-2021-30554
Alpine:v3.21chromium91.0.4472.114-r0ALPINE-CVE-2021-30554
Alpine:v3.22chromium91.0.4472.114-r0ALPINE-CVE-2021-30554
Alpine:v3.23chromium91.0.4472.114-r0ALPINE-CVE-2021-30554
Alpine:v3.24chromium91.0.4472.114-r0ALPINE-CVE-2021-30554
Alpine:v3.20qt5-qtwebengine5.15.3_git20210510-r2ALPINE-CVE-2021-30554
Alpine:v3.21qt5-qtwebengine5.15.3_git20210510-r2ALPINE-CVE-2021-30554
Alpine:v3.22qt5-qtwebengine5.15.3_git20210510-r2ALPINE-CVE-2021-30554
Alpine:v3.23qt5-qtwebengine5.15.3_git20210510-r2ALPINE-CVE-2021-30554
Debian:12chromium93.0.4577.82-1DEBIAN-CVE-2021-30554
Debian:13chromium93.0.4577.82-1DEBIAN-CVE-2021-30554
Debian:14chromium93.0.4577.82-1DEBIAN-CVE-2021-30554

Affected products (as reported)

VendorProductVersions
Google Chrome unspecified – before 91.0.4472.114

Weakness: CWE-416 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References