Risk Letters

Exploited vulnerability

CVE-2025-6554

TLP:CLEAR

Google Chromium V8 Type Confusion Vulnerability

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.

Facts

  • Vendor: Google
  • Product: Chromium V8
  • CVSS: 8.1
  • EPSS (probability of exploitation within 30 days): 14.1 %
  • On CISA's Known Exploited Vulnerabilities list since: 2 July 2025
  • First known exploitation: 2 July 2025
  • CISA's deadline for US federal agencies: 23 July 2025
  • Weakness: CWE-843
  • First seen by Risk Letters: 2 July 2025

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Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD