Vulnerability · Published Jul 2, 2021 · Assigned by Chrome

CVE-2021-30555

High 8.8

In plain English

A high-severity security flaw in Chrome from Google. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.4% (higher than 72% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)8.8High
Exploit odds (30 days)1.4%top 28.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

Use after free in Sharing in Google Chrome prior to 91.0.4472.114 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted HTML page and user gesture.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.20chromium91.0.4472.114-r0ALPINE-CVE-2021-30555
Alpine:v3.21chromium91.0.4472.114-r0ALPINE-CVE-2021-30555
Alpine:v3.22chromium91.0.4472.114-r0ALPINE-CVE-2021-30555
Alpine:v3.23chromium91.0.4472.114-r0ALPINE-CVE-2021-30555
Alpine:v3.24chromium91.0.4472.114-r0ALPINE-CVE-2021-30555
Debian:12chromium93.0.4577.82-1DEBIAN-CVE-2021-30555
Debian:13chromium93.0.4577.82-1DEBIAN-CVE-2021-30555
Debian:14chromium93.0.4577.82-1DEBIAN-CVE-2021-30555

Affected products (as reported)

VendorProductVersions
Google Chrome unspecified – before 91.0.4472.114

References