Permissions, Privileges, and Access Controls in Google Chromium - CVE-2025-6556

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Main Vulnerability Database Vulnerabilities #VU111902

Permissions, Privileges, and Access Controls in Google Chromium - CVE-2025-6556

Published: June 24, 2025 / Updated: June 27, 2025


Vulnerability identifier: #VU111902
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-6556
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to insufficient policy enforcement in Loader in Google Chrome. A remote attacker can trick the victim to visit a specially crafted website, bypass implemented security measures and gain access to sensitive information.


Affected software

Google Chromium
Microsoft Edge
Google Chrome
Gentoo Linux
Debian Linux
Fedora
Chrome OS
www-client/vivaldi
www-client/opera
www-client/microsoft-edge
chromium
chromium (Debian package)
www-client/chromium
www-client/google-chrome
Prisma Access

How to mitigate CVE-2025-6556

Install update from vendor's website.

Google Chromium - update to 138.0.7204.49
Microsoft Edge - update to 138.0.3351.55
Google Chrome - update to 138.0.7204.49
www-client/vivaldi - update to 7.5.3735.44
www-client/opera - update to 122.0.5643.17
Chrome OS - update to 136.0.7103.150
www-client/microsoft-edge - update to 138.0.3351.65
chromium - addressed in versions 138.0.7204.49-1.el9, 138.0.7204.49-1.el10_1, 138.0.7204.49-1.fc41, 138.0.7204.49-1.fc42
chromium (Debian package) - update to 138.0.7204.49-1~deb12u1
www-client/chromium - update to 138.0.7204.92
www-client/google-chrome - update to 138.0.7204.92
Prisma Access - update to 138.33.5.97

External References

Related Security Bulletins