Vulnerability · Published Apr 30, 2021 · Assigned by Chrome

CVE-2021-21230

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 1.6% (higher than 76% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)8.8High
Exploit odds (30 days)1.6%top 24.1% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

Type confusion in V8 in Google Chrome prior to 90.0.4430.93 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.20qt5-qtwebengine5.15.3_git20210510-r0ALPINE-CVE-2021-21230
Alpine:v3.21qt5-qtwebengine5.15.3_git20210510-r0ALPINE-CVE-2021-21230
Alpine:v3.22qt5-qtwebengine5.15.3_git20210510-r0ALPINE-CVE-2021-21230
Alpine:v3.23qt5-qtwebengine5.15.3_git20210510-r0ALPINE-CVE-2021-21230
Debian:12chromium90.0.4430.93-1DEBIAN-CVE-2021-21230
Debian:13chromium90.0.4430.93-1DEBIAN-CVE-2021-21230
Debian:14chromium90.0.4430.93-1DEBIAN-CVE-2021-21230

Affected products (as reported)

VendorProductVersions
Google Chrome unspecified – before 90.0.4430.93

References