CVE-2025-13226
📋 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 Chrome versions before 142.0.7444.59. Attackers can exploit this by getting victims to visit malicious websites.
💻 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 leading to full system compromise, data theft, or ransomware deployment.
Likely Case
Browser crash (denial of service) or limited memory corruption leading to information disclosure.
If Mitigated
Browser sandbox may contain damage to browser process only, preventing full system compromise.
🎯 Exploit Status
Type confusion vulnerabilities in V8 have historically been exploited in the wild, but no specific exploit for this CVE has been confirmed.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 142.0.7444.59 and later
Vendor Advisory: https://chromereleases.googleblog.com/2025/10/stable-channel-update-for-desktop_28.html
Restart Required: Yes
Instructions:
1. Open Chrome. 2. Click the three-dot menu → Help → About Google Chrome. 3. Chrome will automatically check for updates and install version 142.0.7444.59 or later. 4. Click 'Relaunch' to restart Chrome.
🔧 Temporary Workarounds
Disable JavaScript
allPrevents execution of malicious JavaScript that could trigger the vulnerability
chrome://settings/content/javascript → Block
Use Site Isolation
allEnforces process separation between websites to limit impact
chrome://flags/#site-isolation-trial-opt-out → Disabled
🧯 If You Can't Patch
- Use alternative browsers until Chrome can be updated
- Implement network filtering to block known malicious domains
🔍 How to Verify
Check if Vulnerable:
Check Chrome version: if below 142.0.7444.59, system is vulnerable.Check Version:
google-chrome --version (Linux) or chrome://version (all platforms)Verify Fix Applied:
Confirm Chrome version is 142.0.7444.59 or higher after update.📡 Detection & Monitoring
Log Indicators:
- Chrome crash reports
- Unexpected process termination
- Memory access violation logs
Network Indicators:
- Requests to suspicious domains with JavaScript payloads
- Unusual outbound connections after visiting websites
SIEM Query:
source="chrome_logs" AND (event="crash" OR event="access_violation")