Vulnerability · Published Mar 9, 2021 · Assigned by Chrome

CVE-2021-21159

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 1.7% (higher than 78% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)8.8High
Exploit odds (30 days)1.7%top 22.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

Heap buffer overflow in TabStrip in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.20chromium89.0.4389.72-r0ALPINE-CVE-2021-21159
Alpine:v3.21chromium89.0.4389.72-r0ALPINE-CVE-2021-21159
Alpine:v3.22chromium89.0.4389.72-r0ALPINE-CVE-2021-21159
Alpine:v3.23chromium89.0.4389.72-r0ALPINE-CVE-2021-21159
Alpine:v3.24chromium89.0.4389.72-r0ALPINE-CVE-2021-21159
Debian:12chromium89.0.4389.82-1DEBIAN-CVE-2021-21159
Debian:13chromium89.0.4389.82-1DEBIAN-CVE-2021-21159
Debian:14chromium89.0.4389.82-1DEBIAN-CVE-2021-21159

Affected products (as reported)

VendorProductVersions
Google Chrome unspecified – before 89.0.4389.72

References