CVE-2025-13230: Google Chrome V8 RCE Vulnerability

CVE-2025-13230 Overview

CVE-2025-13230 is a type confusion vulnerability in the V8 JavaScript engine used by Google Chrome prior to version 142.0.7444.59. This vulnerability allows a remote attacker to potentially exploit heap corruption via a crafted HTML page, which could lead to arbitrary code execution within the context of the browser.

Critical Impact

Remote attackers can exploit heap corruption through a malicious web page, potentially achieving full code execution in the user's browser context across Windows, macOS, and Linux platforms.

Affected Products

• Google Chrome prior to version 142.0.7444.59
• Windows operating systems running affected Chrome versions
• macOS operating systems running affected Chrome versions
• Linux operating systems running affected Chrome versions

Discovery Timeline

• 2025-11-18 - CVE-2025-13230 published to NVD
• 2025-11-19 - Last updated in NVD database

Technical Details for CVE-2025-13230

Vulnerability Analysis

This vulnerability is classified as CWE-843 (Access of Resource Using Incompatible Type - Type Confusion). Type confusion occurs when code accesses a resource using a type that is incompatible with the actual type of the resource. In the context of V8, the JavaScript engine at the heart of Chrome, this vulnerability can allow an attacker to manipulate memory in unintended ways.

The V8 engine uses sophisticated just-in-time (JIT) compilation and optimization techniques to achieve high JavaScript performance. However, these complex optimizations can sometimes introduce type confusion bugs where the engine incorrectly assumes an object is of a particular type when it is actually a different type. When exploited, this type mismatch can lead to memory being interpreted incorrectly, causing heap corruption.

The network-based attack vector requires user interaction—specifically, a victim must navigate to a malicious web page containing specially crafted JavaScript or HTML content designed to trigger the type confusion condition.

Root Cause

The root cause of CVE-2025-13230 lies in improper type handling within the V8 JavaScript engine's optimization pipeline. When V8 performs speculative optimizations, it makes assumptions about object types based on observed behavior. If an attacker can craft JavaScript that violates these assumptions after optimization has occurred, the engine may access memory using an incorrect type interpretation, leading to heap corruption.

Attack Vector

The attack vector for this vulnerability is network-based and requires user interaction. An attacker would need to:

1. Create a malicious web page containing specially crafted HTML and JavaScript designed to trigger the type confusion
2. Convince a victim to visit the malicious page (via phishing, malicious advertisements, or compromising a legitimate website)
3. Once the victim navigates to the page, the crafted JavaScript executes and triggers the type confusion vulnerability
4. The resulting heap corruption can potentially be leveraged for arbitrary code execution within the browser's renderer process

The vulnerability affects Chrome across all major desktop platforms (Windows, macOS, and Linux), making it a significant cross-platform threat. For detailed technical analysis, refer to the Chromium Issue Tracker Report.

Detection Methods for CVE-2025-13230

Indicators of Compromise

• Unexpected browser crashes or instability, particularly when visiting specific websites
• Anomalous memory consumption patterns in Chrome renderer processes
• Presence of suspicious JavaScript files or obfuscated code in browser cache
• Network connections to known malicious domains associated with drive-by download campaigns

Detection Strategies

• Monitor for Chrome browser versions prior to 142.0.7444.59 across the environment using asset inventory tools
• Implement browser-based security solutions that can detect and block exploit attempts targeting V8
• Deploy endpoint detection and response (EDR) solutions capable of identifying post-exploitation behavior from browser processes
• Utilize network security monitoring to detect connections to known malicious infrastructure

Monitoring Recommendations

• Enable Chrome's Enhanced Safe Browsing mode to receive real-time protection against phishing and malware sites
• Configure SIEM rules to alert on unexpected child process creation from Chrome browser processes
• Monitor for unusual file system activity originating from browser renderer processes
• Implement web filtering to block access to newly registered or low-reputation domains

How to Mitigate CVE-2025-13230

Immediate Actions Required

• Update Google Chrome to version 142.0.7444.59 or later immediately across all systems
• Enable automatic updates for Chrome to ensure future security patches are applied promptly
• Consider using browser isolation solutions to contain potential exploit attempts
• Educate users about the risks of visiting untrusted websites

Patch Information

Google has released a security update addressing this vulnerability in Chrome version 142.0.7444.59. The patch corrects the type handling issue in V8 that allowed the type confusion to occur. Organizations should deploy this update through their standard patch management processes as soon as possible.

For full details on the security update, see the Google Chrome Stable Update announcement.

Workarounds

• If immediate patching is not possible, consider temporarily using an alternative browser until Chrome can be updated
• Implement strict web filtering policies to reduce exposure to potentially malicious websites
• Disable JavaScript in Chrome as a temporary measure, though this will significantly impact web functionality
• Use browser isolation or sandboxing technologies to contain potential browser-based exploits

# Check current Chrome version (Linux/macOS terminal)
google-chrome --version

# Force Chrome update check on Windows
# Open Chrome and navigate to: chrome://settings/help
# Or use enterprise deployment tools like SCCM/Intune for managed updates