All vulnerabilities
CVE-2021-38003

Google Chromium V8 Memory Corruption Vulnerability

Google Chromium V8Applications & CMS
Open in ThreatlineRecord JSON
CVSS
8.8High
ExploitationExploited in the wildAdded to KEV 3 Nov 2021CISA KEV
Exploit odds (EPSS)38.6%Chance of exploitation activity in the next 30 days, higher than 98% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in95.0.4638.69Fixed versionCVE List
Federal deadline17 Nov 2021Remediation due date for US federal agenciesCISA KEV
CISA required actionApply updates per vendor instructions. CISA KEV

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Timeline

  1. 3 Nov 2021Added to CISA KEVCISA KEV
  2. 23 Nov 2021, 21:30 UTCPublishedCVE List

Description

Google Chromium V8 Engine has a bug in JSON.stringify, where the internal TheHole value can leak to script code, causing memory corruption. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.

Text from CVE List

Affected versions 1

  • Chromeaffected: unspecified before 95.0.4638.69CVE List

References 6