Vulnerability · Published Jun 4, 2021 · Assigned by Chrome

CVE-2021-30509

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 0.8% (higher than 58% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)8.8High
Exploit odds (30 days)0.8%top 42.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

Out of bounds write in Tab Strip in Google Chrome prior to 90.0.4430.212 allowed an attacker who convinced a user to install a malicious extension to perform an out of bounds memory write via a crafted HTML page and a crafted Chrome extension.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12chromium90.0.4430.212-1DEBIAN-CVE-2021-30509
Debian:13chromium90.0.4430.212-1DEBIAN-CVE-2021-30509
Debian:14chromium90.0.4430.212-1DEBIAN-CVE-2021-30509

Affected products (as reported)

VendorProductVersions
Google Chrome unspecified – before 90.0.4430.212

References