Type confusion in Google Chromium - CVE-2025-6554

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Main Vulnerability Database Vulnerabilities #VU112062

Type confusion in Google Chromium - CVE-2025-6554

Published: July 1, 2025 / Updated: November 28, 2025


Vulnerability identifier: #VU112062
CSH Severity: Critical
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-6554
CWE-ID: CWE-843
Exploitation vector: Remote access
Exploit availability: The vulnerability is being exploited in the wild

Vulnerability details

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a type confusion error in V8 engine. A remote attacker can trick the victim into visiting a specially crafted website and execute arbitrary code on the system.

Note, the vulnerability is being actively exploited in the wild. 


Affected software

Google Chromium
Microsoft Edge
Google Chrome
Debian Linux
Fedora
Chrome OS
Synthetics Recorder
chromium
chromium (Debian package)
Prisma Access

How to mitigate CVE-2025-6554

Install update from vendor's website.

Google Chromium - update to 138.0.7204.96
Synthetics Recorder - update to 1.4.15
Microsoft Edge - update to 138.0.3351.65
Google Chrome - update to 138.0.7204.96
Chrome OS - update to 132.0.6834.227
chromium - addressed in versions 138.0.7204.92-1.el9, 138.0.7204.92-1.el10_1, 138.0.7204.92-1.fc41, 138.0.7204.92-1.fc42
chromium (Debian package) - update to 138.0.7204.92-1~deb12u1
Prisma Access - update to 138.33.5.97

Links to Public Exploits and PoC-codes

External References

Related Security Bulletins