CVE-2025-13097

5.4 MEDIUM

📋 TL;DR

This vulnerability allows a remote attacker to escape Chrome's sandbox protection through a crafted HTML page when DevTools is open. It affects users running Google Chrome versions before 136.0.7103.59. The attacker could potentially execute arbitrary code outside the sandbox constraints.

💻 Affected Systems

Products:
  • Google Chrome
  • Chromium-based browsers
Versions: All versions prior to 136.0.7103.59
Operating Systems: Windows, macOS, Linux, ChromeOS
Default Config Vulnerable: ⚠️ Yes
Notes: Requires DevTools to be open on a malicious page for exploitation. Most users don't regularly open DevTools, reducing attack surface.

📦 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 →

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 attacker gaining code execution at the user's privilege level, potentially leading to data theft, ransomware deployment, or persistent backdoor installation.

🟠

Likely Case

Limited sandbox escape allowing access to some system resources or files, but requiring user interaction (opening DevTools on malicious page).

🟢

If Mitigated

No impact if Chrome is updated or if users avoid opening DevTools on untrusted websites.

🌐 Internet-Facing: MEDIUM
🏢 Internal Only: LOW

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ⚠️ Yes
Complexity: MEDIUM

Exploitation requires user to open DevTools on attacker-controlled page. 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 settings 2. Click 'About Chrome' 3. Allow update to download and install 4. Click 'Relaunch' when prompted

🔧 Temporary Workarounds

Disable DevTools Access

all

Prevent users from opening DevTools via group policy or enterprise controls

Windows Registry: HKEY_LOCAL_MACHINE\Software\Policies\Google\Chrome\DeveloperToolsDisabled = 1
macOS/Linux: Use Chrome Enterprise policies

Network Blocking

all

Block access to known malicious sites that could host exploit

Use firewall or proxy to block malicious domains

🧯 If You Can't Patch

  • Disable Chrome DevTools via enterprise policies
  • Use alternative browser until patch can be applied
  • Educate users not to open DevTools on untrusted websites

🔍 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' in terminal

Verify Fix Applied:

Confirm Chrome version is 136.0.7103.59 or higher after update.

📡 Detection & Monitoring

Log Indicators:

  • Chrome crash reports with DevTools-related errors
  • Unusual process spawning from Chrome sandbox

Network Indicators:

  • Requests to suspicious domains while DevTools is active
  • Unusual outbound connections following DevTools usage

SIEM Query:

source="chrome_logs" AND (event="crash" OR event="sandbox_violation") AND process="chrome" AND component="devtools"

🔗 References

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