Chrome: use after free (CVE-2025-3066) #shorts

Summary

Today we are diving into a critical vulnerability, CVE-2025-3066, recently found in Google Chrome. This vulnerability impacts the Navigation component and has the potential to lead to serious security risks for users. Stick around as we explore the intricacies of this CVE and what it means for the digital ecosystem.

Product details

The products affected by this vulnerability include Google Chrome versions prior to 135.0.7049.84. This issue has been addressed in Fedora 40 and 41 updates, with the latter advising an update to version 135.0.7049.84 to tackle this critical problem.

Vulnerability type summary

CVE-2025-3066 is classified as a 'use after free' vulnerability. This type of vulnerability occurs when a program attempts to use memory that has been previously freed, which can lead to unexpected behavior or security issues such as heap corruption.

Details of the vulnerability

The CVE-2025-3066 vulnerability arises from issues in the Navigation and Site Isolation components within Google Chrome. Prior to version 135.0.7049.84, a remote attacker could exploit heap corruption using a crafted HTML page. This could lead to serious security breaches, given the high severity rating of the vulnerability.

Conclusion

In conclusion, the CVE-2025-3066 vulnerability presents significant risks for users of affected versions of Google Chrome. It is crucial for users to update their Chrome browsers to version 135.0.7049.84 or later to safeguard against potential exploits. As always, keeping your software up-to-date is a vital step in maintaining security.

This chain involves the following actors

This following systems are involved

Attack entry point

Remediation actions

Exploitation actions

• https://chromereleases.googleblog.com/2025/04/stable-channel-update-for-desktop.html
• https://issues.chromium.org/issues/405140652
• [2025-04-13] Fedora 40 update addresses critical Chromium vulnerability CVE-2025-3066.
• [2025-04-13] Fedora 41 Advisory FEDORA-2025-20e35f4f9f critical: site isolation issue. Update to 135.0.7049.84 to address CVE-2025-3066.