CVE-2025-6554

HIGH8.1

CISA KEV

Published 2025-06-30 · Updated 2026-06-17 · Source chrome-cve-admin@google.com

Summary

CVE-2025-6554 is a high-severity (CVSS 8.1) vulnerability in Google Chromium V8. CISA added it to the Known Exploited Vulnerabilities catalog on July 2, 2025, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by July 23, 2025. CISA does not currently list it as used in ransomware campaigns. Google has 76 vulnerabilities in the KEV catalog, 0 of them linked to ransomware.

All 76 known-exploited Google vulnerabilities →

Description

Type confusion in V8 in Google Chrome prior to 138.0.7204.96 allowed a remote attacker to perform arbitrary read/write via a crafted HTML page. (Chromium security severity: High)

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

CWE-843

CISA Known-Exploited Vulnerability

Product: Google — Chromium V8

Name: Google Chromium V8 Type Confusion Vulnerability

Date added: 2025-07-02 · Due: 2025-07-23

Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

References

View on NVD

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