CVE-2025-10501
📋 TL;DR
A use-after-free vulnerability in WebRTC in Google Chrome allows remote attackers to potentially exploit heap corruption via a crafted HTML page. This could lead to arbitrary code execution or browser crashes. All users running vulnerable Chrome versions 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 with the privileges of the Chrome process, potentially leading to full system compromise if combined with privilege escalation.
Likely Case
Browser crash (denial of service) or limited information disclosure from memory corruption.
If Mitigated
No impact if Chrome is fully patched or if WebRTC functionality is disabled.
🎯 Exploit Status
Use-after-free vulnerabilities typically require precise timing and memory manipulation, but WebRTC's complexity makes exploitation feasible for skilled attackers.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 140.0.7339.185 and later
Vendor Advisory: https://chromereleases.googleblog.com/2025/09/stable-channel-update-for-desktop_17.html
Restart Required: Yes
Instructions:
1. Open Chrome. 2. Click the three-dot menu → Help → About Google Chrome. 3. Chrome will automatically check for updates and install version 140.0.7339.185 or later. 4. Click 'Relaunch' to restart Chrome.
🔧 Temporary Workarounds
Disable WebRTC
allDisables WebRTC functionality which contains the vulnerability
chrome://flags/#disable-webrtc
Set 'WebRTC' flag to 'Disabled'
Use Chrome Enterprise policies
windowsDisable WebRTC via group policy for enterprise deployments
Set 'DefaultWebRtcSetting' policy to 2 (disable)
🧯 If You Can't Patch
- Disable WebRTC via chrome://flags or enterprise policies
- Use browser isolation or sandboxing solutions to contain potential exploits
🔍 How to Verify
Check if Vulnerable:
Check Chrome version: if below 140.0.7339.185, you are vulnerable.Check Version:
chrome://version or 'google-chrome --version' in terminalVerify Fix Applied:
Confirm Chrome version is 140.0.7339.185 or higher via chrome://version📡 Detection & Monitoring
Log Indicators:
- Chrome crash reports with WebRTC-related stack traces
- Unexpected Chrome process termination
Network Indicators:
- Unusual WebRTC connections to malicious domains
- Suspicious WebRTC data channels
SIEM Query:
source="chrome_crash_reports" AND (process="chrome" OR process="chrome.exe") AND message="*WebRTC*"