Overview
In the ever-evolving landscape of cybersecurity, vulnerabilities are a constant concern for developers, administrators, and end-users alike. The vulnerability in focus, CVE-2025-10201, is a significant concern due to its high severity score and wide potential for exploitation. This weakness exists in Mojo, an inter-process communication system in Google Chrome, affecting Android, Linux, and ChromeOS versions prior to 140.0.7339.127. An attacker with the knowledge of this vulnerability could bypass site isolation, potentially leading to system compromise or data leakage. This post explores the technical details of this vulnerability, its impact, and the steps to mitigate it.
Vulnerability Summary
CVE ID: CVE-2025-10201
Severity: High, CVSS score 8.8
Attack Vector: Network
Privileges Required: None
User Interaction: Required
Impact: System compromise, Data leakage
Affected Products
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Product | Affected Versions
Google Chrome on Android | Prior to 140.0.7339.127
Google Chrome on Linux | Prior to 140.0.7339.127
Google Chrome on ChromeOS | Prior to 140.0.7339.127
How the Exploit Works
CVE-2025-10201 is a flaw in the Mojo IPC system in Google Chrome. An attacker can craft a malicious HTML page that, when loaded and interacted with by the user, can bypass Chrome’s site isolation feature. This feature is designed to separate processes between different tabs to prevent one site from accessing data from another. However, this vulnerability could allow an attacker to break this isolation, potentially leading to unauthorized access to data or control over the system.
Conceptual Example Code
Below is a conceptual example of how this vulnerability might be exploited. In this case, a malicious payload is embedded in an HTML page, which when loaded can trigger the vulnerability.
<!DOCTYPE html>
<html>
<body>
<script>
// Crafted malicious JavaScript code
var malicious_payload = "...";
// Exploit the vulnerability
exploit(malicious_payload);
</script>
</body>
</html>Please note that this is a simplified example and actual exploitation could be more complex, requiring specific knowledge of the target system and the vulnerability.
Mitigation
To mitigate the risks associated with CVE-2025-10201, users should apply the vendor patch as soon as possible. Google has released an update for Chrome that addresses this vulnerability. Ensure that Chrome is updated to version 140.0.7339.127 or later on all affected systems.
In cases where immediate patching is not possible, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation. These systems can potentially detect and block attempts to exploit this vulnerability. However, these are not long-term solutions and patching should be implemented as soon as feasible.
