CVE-2025-11206
📋 TL;DR
A heap buffer overflow vulnerability in Chrome's video processing component allows remote attackers to execute arbitrary code via a malicious HTML page. This affects all users running Google Chrome versions before 141.0.7390.54. The vulnerability could lead to sandbox escape, potentially compromising the entire system.
💻 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
Complete system compromise through sandbox escape leading to remote code execution with system-level privileges, data theft, and persistent backdoor installation.
Likely Case
Remote code execution within Chrome's sandbox, potentially leading to session hijacking, credential theft, and lateral movement within the user's environment.
If Mitigated
Limited impact with proper sandboxing, though successful exploitation could still lead to data exfiltration from the browser context.
🎯 Exploit Status
Exploitation requires user to visit a malicious webpage. No authentication required. The vulnerability is in the video processing pipeline which is frequently exposed to untrusted content.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 141.0.7390.54
Vendor Advisory: https://chromereleases.googleblog.com/2025/09/stable-channel-update-for-desktop_30.html
Restart Required: Yes
Instructions:
1. Open Chrome. 2. Click the three-dot menu → Help → About Google Chrome. 3. Chrome will automatically check for and install updates. 4. Click 'Relaunch' to restart Chrome with the updated version.
🔧 Temporary Workarounds
Disable automatic video playback
allPrevents automatic video loading which could trigger the vulnerability
chrome://settings/content/siteDetails?site=chrome://settings
Set 'Autoplay' to 'Block'
Use browser extensions to block video content
allExtensions like uBlock Origin can block video elements from loading
Install uBlock Origin from Chrome Web Store
🧯 If You Can't Patch
- Implement network filtering to block known malicious domains and restrict access to untrusted websites
- Use application whitelisting to prevent execution of unauthorized processes that might result from exploitation
🔍 How to Verify
Check if Vulnerable:
Check Chrome version in Settings → About Chrome. If version is less than 141.0.7390.54, the system is vulnerable.Check Version:
On Windows: "chrome://version/" in address bar. On Linux/macOS: google-chrome --versionVerify Fix Applied:
Confirm Chrome version is 141.0.7390.54 or higher in Settings → About Chrome.📡 Detection & Monitoring
Log Indicators:
- Chrome crash reports with video-related stack traces
- Unexpected Chrome child process creation
- Sandbox violation events in system logs
Network Indicators:
- HTTP requests to domains serving video content with unusual parameters
- Outbound connections from Chrome to unexpected destinations post-page load
SIEM Query:
source="chrome_logs" AND (event="crash" AND process="chrome" AND module="video") OR (process_creation AND parent_process="chrome.exe" AND command_line CONTAINS "--type="