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CVE-2025-6554

Google Chromium V8 Type Confusion Vulnerability

Google Chromium V8Applications & CMS
Open in ThreatlineRecord JSON
CVSS
8.1High
ExploitationExploited in the wildAdded to KEV 2 Jul 2025CISA KEV
Exploit odds (EPSS)14.1%Chance of exploitation activity in the next 30 days, higher than 96% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in138.0.7204.96Fixed versionCVE List
Federal deadline23 Jul 2025Remediation due date for US federal agenciesCISA KEV
CISA required actionApply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. 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. 30 Jun 2025, 21:14 UTCPublishedCVE List
  2. 2 Jul 2025Added to CISA KEVCISA KEV

Description

Google Chromium V8 contains a type confusion vulnerability that could allow a remote attacker to perform arbitrary read/write via a crafted HTML page. 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: 138.0.7204.96 before 138.0.7204.96CVE List

References 5