CVE-2025-1006

8.8 HIGH

📋 TL;DR

This is a use-after-free vulnerability in Chrome's Network component that allows remote attackers to potentially exploit heap corruption through a crafted web application. All users running vulnerable versions of Google Chrome are affected. The vulnerability could lead to arbitrary code execution or browser crashes.

💻 Affected Systems

Products:
  • Google Chrome
  • Chromium-based browsers
Versions: Prior to 133.0.6943.126
Operating Systems: Windows, macOS, Linux, ChromeOS
Default Config Vulnerable: ⚠️ Yes
Notes: All standard Chrome installations are vulnerable. Extensions or security settings don't mitigate this vulnerability.

📦 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 leading to full system compromise, data theft, or malware installation.

🟠

Likely Case

Browser crash or denial of service, potentially allowing sandbox escape in combination with other vulnerabilities.

🟢

If Mitigated

Limited impact due to Chrome's sandboxing, potentially just a tab crash.

🌐 Internet-Facing: HIGH - Attackers can exploit via malicious websites without user interaction beyond visiting the site.
🏢 Internal Only: MEDIUM - Internal users could be targeted via phishing or compromised internal sites.

🎯 Exploit Status

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

Requires crafting a malicious web app but no authentication needed. Chrome's sandbox makes reliable exploitation more difficult.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 133.0.6943.126 and later

Vendor Advisory: https://chromereleases.googleblog.com/2025/02/stable-channel-update-for-desktop_18.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 patched version.

🔧 Temporary Workarounds

Disable JavaScript

all

Prevents exploitation by disabling JavaScript execution, but breaks most websites.

Use Chrome's Site Isolation

all

Ensure site isolation is enabled to limit impact of potential exploitation.

🧯 If You Can't Patch

  • Restrict browser usage to trusted websites only
  • Implement network filtering to block malicious web content
  • Use application allowlisting to prevent unauthorized browser execution

🔍 How to Verify

Check if Vulnerable:

Check Chrome version in Settings → About Chrome. If version is below 133.0.6943.126, you are vulnerable.

Check Version:

chrome://version/ or 'google-chrome --version' on command line

Verify Fix Applied:

Confirm Chrome version is 133.0.6943.126 or higher in Settings → About Chrome.

📡 Detection & Monitoring

Log Indicators:

  • Chrome crash reports
  • Unexpected process termination events
  • Sandbox escape attempts in system logs

Network Indicators:

  • Unusual outbound connections from Chrome processes
  • Traffic to known malicious domains hosting exploit code

SIEM Query:

source="chrome" AND (event_type="crash" OR process_name="chrome.exe" AND exit_code!=0)

🔗 References

📤 Share & Export