CVE-2025-4050
📋 TL;DR
This vulnerability allows a remote attacker to trigger heap corruption in Google Chrome's DevTools through out-of-bounds memory access. An attacker could exploit this by convincing a user to perform specific UI gestures while visiting a malicious HTML page. All users running vulnerable versions of Google Chrome 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
Full remote code execution leading to complete system compromise, data theft, or ransomware deployment.
Likely Case
Browser crash, denial of service, or limited information disclosure from browser memory.
If Mitigated
No impact if Chrome is updated to patched version or if DevTools access is restricted.
🎯 Exploit Status
Requires user interaction (specific UI gestures) and DevTools access. No public exploit code available at disclosure.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 136.0.7103.59 and later
Vendor Advisory: https://chromereleases.googleblog.com/2025/04/stable-channel-update-for-desktop_29.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 update. 4. Click 'Relaunch' to restart Chrome.
🔧 Temporary Workarounds
Disable DevTools
allPrevent access to Chrome DevTools through enterprise policies or user settings
# Windows Registry: HKEY_LOCAL_MACHINE\Software\Policies\Google\Chrome\DeveloperToolsDisabled = 1
# macOS/Linux: Use Chrome Enterprise policies
Restrict Website Access
allBlock access to untrusted websites using web filtering or firewall rules
🧯 If You Can't Patch
- Implement network segmentation to isolate vulnerable browsers from critical systems
- Deploy application control to prevent execution of unauthorized processes from browser
🔍 How to Verify
Check if Vulnerable:
Check Chrome version in Settings → About Chrome. If version is below 136.0.7103.59, system is vulnerable.Check Version:
chrome://version/ or 'google-chrome --version' (Linux) or check in Chrome settingsVerify Fix Applied:
Confirm Chrome version is 136.0.7103.59 or higher in About Chrome page.📡 Detection & Monitoring
Log Indicators:
- Chrome crash reports with memory access violations
- Unexpected DevTools process activity
- Browser sandbox escape attempts
Network Indicators:
- Requests to known malicious domains hosting crafted HTML
- Unusual outbound connections from Chrome processes
SIEM Query:
source="chrome" AND (event_type="crash" OR process_name="chrome_debug" OR memory_access_violation)