CVE-2025-5063
📋 TL;DR
This is a use-after-free vulnerability in Chrome's compositing engine that allows remote attackers to potentially exploit heap corruption. Attackers can trigger this vulnerability by tricking users into visiting a malicious HTML page. All Chrome users on versions prior to 137.0.7151.55 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 code execution within Chrome sandbox
If Mitigated
Browser crash with no data loss if sandbox holds
🎯 Exploit Status
Requires user to visit malicious page but no authentication needed. Heap corruption exploitation requires additional techniques to achieve code execution.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 137.0.7151.55 and later
Vendor Advisory: https://chromereleases.googleblog.com/2025/05/stable-channel-update-for-desktop_27.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
🔧 Temporary Workarounds
Disable JavaScript
allPrevents malicious HTML from executing JavaScript that triggers the vulnerability
chrome://settings/content/javascript → Block
Use Site Isolation
allEnhances sandboxing between different websites
chrome://flags/#enable-site-per-process → Enable
🧯 If You Can't Patch
- Use alternative browser until Chrome can be updated
- Implement web filtering to block known malicious sites
🔍 How to Verify
Check if Vulnerable:
Check Chrome version in About Google Chrome pageCheck Version:
chrome://version/Verify Fix Applied:
Confirm version is 137.0.7151.55 or higher📡 Detection & Monitoring
Log Indicators:
- Chrome crash reports
- Unexpected process terminations
- Sandbox escape attempts
Network Indicators:
- Requests to known exploit hosting domains
- Unusual outbound connections after visiting web pages
SIEM Query:
source="chrome" AND (event="crash" OR event="process_termination") AND version<"137.0.7151.55"