CVE-2025-5959
📋 TL;DR
This vulnerability allows remote attackers to execute arbitrary code within Chrome's sandbox through type confusion in the V8 JavaScript engine. Users of Google Chrome versions before 137.0.7151.103 are affected when visiting 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 →⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of the Chrome sandbox leading to arbitrary code execution on the victim's system, potentially enabling full system takeover.
Likely Case
Remote code execution within the browser context, allowing data theft, session hijacking, or installation of malware.
If Mitigated
Limited impact due to Chrome's sandbox protections, potentially containing the exploit to the browser process only.
🎯 Exploit Status
Exploitation requires user interaction (visiting malicious website) but no authentication. Type confusion vulnerabilities in V8 have historically been exploited in the wild.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 137.0.7151.103 and later
Vendor Advisory: https://chromereleases.googleblog.com/2025/06/stable-channel-update-for-desktop_10.html
Restart Required: Yes
Instructions:
1. Open Chrome. 2. Click the three-dot menu. 3. Go to Help > About Google Chrome. 4. Chrome will automatically check for and install updates. 5. Click 'Relaunch' to restart Chrome with the update.
🔧 Temporary Workarounds
Disable JavaScript
allPrevents exploitation by disabling JavaScript execution in Chrome
Use Site Isolation
allEnhances Chrome's site isolation features to limit impact
🧯 If You Can't Patch
- Restrict access to untrusted websites using web filtering or proxy controls
- Implement application whitelisting to prevent unauthorized code execution
🔍 How to Verify
Check if Vulnerable:
Check Chrome version in Settings > About Chrome. If version is below 137.0.7151.103, system is vulnerable.Check Version:
chrome://version/Verify Fix Applied:
Confirm Chrome version is 137.0.7151.103 or higher in Settings > About Chrome.📡 Detection & Monitoring
Log Indicators:
- Chrome crash reports with V8-related errors
- Unexpected Chrome process termination
- Security event logs showing browser exploitation
Network Indicators:
- Traffic to known malicious domains hosting exploit code
- Unusual outbound connections from Chrome processes
SIEM Query:
source="chrome" AND (event_type="crash" OR error="V8")