CVE-2025-2136

8.8 HIGH

📋 TL;DR

A use-after-free vulnerability in Chrome's Inspector component allows remote attackers to potentially exploit heap corruption via specially crafted HTML pages. This could lead to arbitrary code execution or browser crashes. All users running vulnerable versions of Google Chrome are affected.

💻 Affected Systems

Products:
  • Google Chrome
  • Chromium-based browsers
Versions: All versions prior to 134.0.6998.88
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...

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⚠️ 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 other vulnerabilities or running with elevated privileges.

🟠

Likely Case

Browser crash (denial of service) or limited memory corruption leading to unstable browser behavior.

🟢

If Mitigated

Browser sandboxing and modern exploit mitigations would likely contain the impact to the browser process only.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation requires user interaction (visiting a malicious page). The use-after-free in Inspector suggests exploitation requires specific conditions to trigger.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 134.0.6998.88 and later

Vendor Advisory: https://chromereleases.googleblog.com/2025/03/stable-channel-update-for-desktop_10.html

Restart Required: No

Instructions:

1. Open Chrome. 2. Click the three-dot menu. 3. Go to Help > About Google Chrome. 4. Chrome will automatically check for and install updates. 5. Relaunch Chrome if prompted.

🔧 Temporary Workarounds

Disable Chrome auto-updates

all

Not recommended as it prevents security updates. Only use if absolutely necessary for testing.

🧯 If You Can't Patch

  • Use alternative browsers until patching is possible
  • Implement network filtering to block suspicious websites and restrict browser usage

🔍 How to Verify

Check if Vulnerable:

Check Chrome version in Settings > About Chrome. If version is below 134.0.6998.88, the system is vulnerable.

Check Version:

On Windows: "chrome://version/" in address bar. On macOS/Linux: google-chrome --version

Verify Fix Applied:

Confirm Chrome version is 134.0.6998.88 or higher in Settings > About Chrome.

📡 Detection & Monitoring

Log Indicators:

  • Chrome crash reports
  • Unexpected process terminations
  • Memory access violation logs

Network Indicators:

  • Requests to known malicious domains hosting exploit code
  • Unusual outbound connections after visiting suspicious sites

SIEM Query:

source="chrome_logs" AND (event_type="crash" OR message="access violation" OR message="heap corruption")

🔗 References

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