CVE-2025-5280
📋 TL;DR
This vulnerability allows remote attackers to execute arbitrary code or cause denial of service through heap corruption by tricking users into visiting a malicious webpage. It affects all users running vulnerable versions of Google Chrome and Chromium-based browsers. The attacker needs no authentication and can exploit this simply by having the victim visit a crafted website.
💻 Affected Systems
- Google Chrome
- Chromium
- Microsoft Edge
- Brave
- Opera
- Vivaldi
- other 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
Full system compromise with remote code execution leading to data theft, ransomware deployment, or complete system control.
Likely Case
Browser crash (denial of service) or limited code execution within browser sandbox, potentially leading to session hijacking or credential theft.
If Mitigated
Browser crash with no data loss if sandbox holds, but user may need to restart browser.
🎯 Exploit Status
Exploitation requires bypassing Chrome's sandbox and other security mitigations, but the vulnerability itself is accessible without authentication.
🛠️ 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 and click the three-dot menu. 2. Go to Help > About Google Chrome. 3. Chrome will automatically check for updates and install version 137.0.7151.55 or later. 4. Click 'Relaunch' to restart Chrome with the fix.
🔧 Temporary Workarounds
Disable JavaScript
allPrevents exploitation by disabling JavaScript execution, but breaks most website functionality.
chrome://settings/content/javascript > toggle to 'Blocked'
Use Site Isolation
allEnables Chrome's Site Isolation feature to limit impact of renderer compromises.
chrome://flags/#enable-site-per-process > set to 'Enabled'
🧯 If You Can't Patch
- Deploy network filtering to block known malicious domains and restrict browser usage to essential sites only.
- Implement application whitelisting to prevent execution of unknown processes from browser sessions.
🔍 How to Verify
Check if Vulnerable:
Check Chrome version: if below 137.0.7151.55, you are vulnerable.Check Version:
chrome://version (look for 'Google Chrome' version number)Verify Fix Applied:
Confirm Chrome version is 137.0.7151.55 or higher after update.📡 Detection & Monitoring
Log Indicators:
- Chrome crash reports with V8-related errors
- Unexpected browser process termination
- Suspicious memory access patterns in system logs
Network Indicators:
- Unusual outbound connections from browser processes
- Traffic to known exploit hosting domains
SIEM Query:
source="chrome_logs" AND (event="crash" OR error="V8") AND version<"137.0.7151.55"