Overview of CVE-2025-4052

A critical vulnerability, CVE-2025-4052, has been discovered in Google Chrome’s DevTools. This issue affects versions prior to 136.0.7103.59, allowing a remote attacker to bypass discretionary access controls through a crafted HTML page. The attack occurs when a user engages in specific UI gestures within the browser, enabling unauthorized access.

Details of the Vulnerability

The vulnerability arises from an inappropriate implementation in Chrome’s DevTools. A remote attacker can convince the user to interact with a specially crafted HTML page, bypassing access controls. This flaw occurs because the DevTools does not properly validate or restrict certain UI actions that are critical for access control.

With this vulnerability, an attacker can execute actions on the user’s system without proper authentication, which could lead to significant privacy and security risks. The issue was addressed by Google in the latest update, where they improved the implementation to prevent such bypasses.

CVSS Score and Impact

The CVSS v3.1 score for CVE-2025-4052 is 9.8, marking this as a critical vulnerability. Key details of the CVSS score are as follows:

• Attack Vector (AV): Network – Can be exploited remotely.
• Attack Complexity (AC): Low – Exploitation does not require complex conditions.
• Privileges Required (PR): None – No special privileges needed to exploit.
• User Interaction (UI): None – Exploit can occur without user interaction.
• Confidentiality Impact (C): High – Sensitive data may be exposed.
• Integrity Impact (I): High – System data could be altered.
• Availability Impact (A): High – The attacker can disrupt system functions.

Mitigation

Google has addressed this issue in the latest version of Chrome (136.0.7103.59). Users are strongly encouraged to update to this version to mitigate the risk and protect their systems from unauthorized access.

For more details on the update and security fixes, visit the official Google blog.

Conclusion

CVE-2025-4052 highlights the importance of secure implementation in web development tools, especially for user interaction elements that control access permissions. Chrome users should immediately apply the latest security updates to avoid the risk of exploitation and safeguard their sensitive information.