CVE-2025-4052
📋 TL;DR
This vulnerability in Chrome DevTools allows attackers to bypass discretionary access control by tricking users into performing specific UI gestures on a malicious webpage. It affects all users running vulnerable versions of Google Chrome. The exploit requires user interaction but can lead to unauthorized access to browser resources.
💻 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
An attacker could gain unauthorized access to sensitive browser data, manipulate DevTools functionality, or potentially escalate privileges within the browser context.
Likely Case
Limited data exposure or manipulation within the browser's DevTools environment, requiring user interaction with a crafted webpage.
If Mitigated
Minimal impact if users avoid suspicious websites and Chrome is updated promptly.
🎯 Exploit Status
Exploitation requires convincing users to perform specific UI gestures on a crafted HTML page.
🛠️ 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 updates. 4. Click 'Relaunch' to restart Chrome.
🔧 Temporary Workarounds
Disable DevTools
allPrevent exploitation by disabling Chrome DevTools access
Not applicable - configure via Chrome policies or extensions
Restrict website access
allUse browser extensions or policies to block access to untrusted websites
🧯 If You Can't Patch
- Implement network filtering to block access to known malicious domains
- Educate users to avoid clicking suspicious links or performing unknown UI gestures
🔍 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' on Linux/macOSVerify Fix Applied:
Confirm Chrome version is 136.0.7103.59 or higher after update.📡 Detection & Monitoring
Log Indicators:
- Unusual DevTools activity patterns
- Multiple failed access attempts to restricted browser resources
Network Indicators:
- Requests to suspicious domains followed by unusual browser behavior
SIEM Query:
source="chrome_logs" AND (event="devtools_access" OR event="security_violation") AND severity="high"