CVE-2025-13630
📋 TL;DR
A type confusion vulnerability in Chrome's V8 JavaScript engine allows attackers to trigger heap corruption by tricking the engine into treating one data type as another. This affects all users running vulnerable versions of Google Chrome. Successful exploitation could lead to arbitrary code execution.
💻 Affected Systems
- Google Chrome
- Chromium-based browsers
📦 What is this software?
Chrome by Google
Google Chrome is the world's most popular web browser, used by over 3 billion users globally across Windows, macOS, Linux, Android, and iOS platforms. As a Chromium-based browser developed by Google, Chrome dominates the browser market with approximately 65% market share, making it a critical compon...
Learn more about Chrome →Chrome by Google
Google Chrome is the world's most popular web browser, used by over 3 billion users globally across Windows, macOS, Linux, Android, and iOS platforms. As a Chromium-based browser developed by Google, Chrome dominates the browser market with approximately 65% market share, making it a critical compon...
Learn more about Chrome →⚠️ Risk & Real-World Impact
Worst Case
Remote code execution with the same privileges as the Chrome process, potentially leading to full system compromise if combined with privilege escalation.
Likely Case
Browser crash (denial of service) or limited code execution within the sandboxed renderer process.
If Mitigated
Chrome's sandboxing limits impact to the renderer process, preventing full system compromise in default configurations.
🎯 Exploit Status
Type confusion vulnerabilities in V8 are frequently exploited in the wild, but no specific exploit for this CVE has been publicly disclosed.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 143.0.7499.41 and later
Vendor Advisory: https://chromereleases.googleblog.com/2025/12/stable-channel-update-for-desktop.html
Restart Required: Yes
Instructions:
1. Open Chrome and click the three-dot menu. 2. Go to Help > About Google Chrome. 3. Chrome will automatically check for and install updates. 4. Click 'Relaunch' to restart Chrome with the update.
🔧 Temporary Workarounds
Disable JavaScript
allPrevents execution of malicious JavaScript that could trigger the vulnerability
Use Site Isolation
allEnsures each site runs in a separate process, limiting impact
🧯 If You Can't Patch
- Restrict browsing to trusted websites only
- Use application whitelisting to prevent unauthorized Chrome execution
🔍 How to Verify
Check if Vulnerable:
Check Chrome version: if below 143.0.7499.41, you are vulnerable.Check Version:
chrome://version/ or 'google-chrome --version' on Linux/macOSVerify Fix Applied:
Confirm Chrome version is 143.0.7499.41 or higher after update.📡 Detection & Monitoring
Log Indicators:
- Chrome crash reports with V8-related errors
- Unexpected renderer process terminations
Network Indicators:
- Requests to known malicious domains hosting exploit code
SIEM Query:
source="chrome" AND (event="crash" OR event="renderer_killed") AND process="chrome"