CVE-2025-2135
📋 TL;DR
This is a type confusion vulnerability in Chrome's V8 JavaScript engine that could allow an attacker to trigger heap corruption by tricking the browser into misinterpreting data types. Attackers could exploit this by luring users to malicious websites. All users running vulnerable Chrome versions are affected.
💻 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
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 prevents system-wide compromise, but tab isolation could be bypassed
🎯 Exploit Status
Exploitation requires user interaction (visiting malicious site) but no authentication. Type confusion vulnerabilities in V8 have historically been exploited in the wild.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 134.0.6998.88 or later
Vendor Advisory: https://chromereleases.googleblog.com/2025/03/stable-channel-update-for-desktop_10.html
Restart Required: Yes
Instructions:
1. Open Chrome
2. Click three-dot menu → 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 exploitation by disabling JavaScript execution, but breaks most websites
Use Site Isolation
allEnsure Chrome's Site Isolation feature is enabled (default in modern versions)
🧯 If You Can't Patch
- Deploy network filtering to block known malicious domains
- Use application allowlisting to restrict browser execution
🔍 How to Verify
Check if Vulnerable:
Check Chrome version in Settings → About ChromeCheck Version:
chrome://version/Verify Fix Applied:
Verify Chrome version is 134.0.6998.88 or higher📡 Detection & Monitoring
Log Indicators:
- Chrome crash reports
- Unexpected process termination events
- Sandbox escape attempts in security logs
Network Indicators:
- Connections to suspicious domains with crafted JavaScript
- Unusual outbound traffic from browser processes
SIEM Query:
source="chrome" AND (event_type="crash" OR process_name="chrome.exe" AND exit_code!=0)