Overview
In this blog post, we are going to take an in-depth look at the CVE-2025-10502 vulnerability, a significant security flaw that has the potential to cause serious damage to systems running Google Chrome versions prior to 140.0.7339.185. Affecting the ANGLE component of Google Chrome, this vulnerability can be exploited by a remote attacker via malicious network traffic, leading to potential system compromise and data leakage. It is critical for both individuals and organizations that heavily rely on Google Chrome for daily operations, as exploitation can lead to unauthorized access, disruption of services, and potential loss of sensitive data.
Vulnerability Summary
CVE ID: CVE-2025-10502
Severity: High (CVSS Score 8.8)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage
Affected Products
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Product | Affected Versions
Google Chrome | Versions prior to 140.0.7339.185
How the Exploit Works
The vulnerability exists in the ANGLE (Almost Native Graphics Layer Engine) component of Google Chrome. ANGLE is a thin layer of software that provides hardware-accelerated 3D graphics and is used by Google Chrome to render web content. A flaw in the handling of certain network traffic can cause a heap buffer overflow condition. This condition occurs when a program attempts to put more data in a buffer than it can hold, or when it attempts to put data in a memory area past a buffer.
In this case, a remote attacker can send specially crafted malicious network traffic to a vulnerable system, causing the overflow. When this happens, it disrupts the normal flow of the program and can allow an attacker to execute arbitrary code, leading to potential system compromise or data leakage.
Conceptual Example Code
Here is a conceptual example of how the vulnerability might be exploited. This example is not real exploit code but represents the kind of network activity that could trigger the vulnerability.
POST /angle/render HTTP/1.1
Host: target.example.com
Content-Type: application/angle-data
{ "angle_payload": "OVERFLOW DATA..." }In this example, the `angle_payload` is filled with more data than the buffer in the ANGLE component can handle, causing a heap buffer overflow and leading to potential system compromise or data leakage.
Please note that this is a conceptual example. Actual exploit code would be more complex and specific to the target system.
Mitigation Guidance
To mitigate this vulnerability, users are recommended to apply the vendor patch as soon as it is available. In the absence of a patch, or until it can be applied, users can employ a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as temporary mitigation to monitor network traffic and block any suspicious activity that might indicate an attempt to exploit this vulnerability. Regularly updating and patching software is a critical component of maintaining system security.
