CVE-2025-12430

7.5 HIGH

📋 TL;DR

A high-severity object lifecycle vulnerability in Google Chrome allows remote attackers to perform UI spoofing via crafted HTML pages. This enables attackers to trick users into interacting with fake interface elements. All Chrome users on affected versions are vulnerable.

💻 Affected Systems

Products:
  • Google Chrome
  • Chromium-based browsers
Versions: All versions prior to 142.0.7444.59
Operating Systems: Windows, macOS, Linux, ChromeOS
Default Config Vulnerable: ⚠️ Yes
Notes: All standard Chrome installations are vulnerable. Extensions or security settings do not 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

Attackers could create convincing fake login dialogs, payment forms, or security warnings that appear legitimate, leading to credential theft, financial fraud, or malware installation.

🟠

Likely Case

Phishing attacks where users are tricked into entering sensitive information into spoofed UI elements that appear to be from legitimate websites.

🟢

If Mitigated

With proper user awareness training and browser security settings, users might recognize suspicious UI elements, reducing successful exploitation.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation requires user interaction (visiting a malicious page) but no authentication. The vulnerability is in the browser's media handling code.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 142.0.7444.59 and later

Vendor Advisory: https://chromereleases.googleblog.com/2025/10/stable-channel-update-for-desktop_28.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 execution of malicious scripts that could exploit this vulnerability

Use Content Security Policy

all

Implement strict CSP headers to restrict script execution

🧯 If You Can't Patch

  • Use alternative browsers until Chrome can be updated
  • Implement network filtering to block known malicious domains hosting exploit pages

🔍 How to Verify

Check if Vulnerable:

Check Chrome version: if below 142.0.7444.59, you are vulnerable

Check Version:

chrome://version/

Verify Fix Applied:

Confirm Chrome version is 142.0.7444.59 or higher

📡 Detection & Monitoring

Log Indicators:

  • Unusual browser crashes related to media handling
  • User reports of suspicious UI elements

Network Indicators:

  • Connections to domains hosting HTML pages with unusual media elements

SIEM Query:

Browser logs showing access to known malicious domains combined with media-related errors

🔗 References

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