CVE-2025-12441
📋 TL;DR
This vulnerability allows a remote attacker to read memory outside the intended buffer in Chrome's V8 JavaScript engine via a malicious HTML page. It affects all users running vulnerable versions of Google Chrome. The attacker could potentially leak sensitive information from browser memory.
💻 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
Information disclosure leading to exposure of sensitive data like passwords, session tokens, or other application secrets from browser memory.
Likely Case
Limited information disclosure of random memory contents, potentially causing application instability or crashes.
If Mitigated
No impact if Chrome is updated to patched version or if exploit attempts are blocked by security controls.
🎯 Exploit Status
Exploitation requires user to visit a malicious webpage. No public exploit code is known at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 142.0.7444.59 or 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. 3. Go to Help > About Google Chrome. 4. Chrome will automatically check for and install updates. 5. Click Relaunch to restart Chrome.
🔧 Temporary Workarounds
Disable JavaScript
allPrevents execution of malicious JavaScript that could trigger the vulnerability
Use browser extensions to block malicious sites
allInstall security extensions that block known malicious websites
🧯 If You Can't Patch
- Restrict browsing to trusted websites only
- Implement network filtering to block malicious domains
🔍 How to Verify
Check if Vulnerable:
Check Chrome version in Settings > About Chrome. If version is below 142.0.7444.59, system is vulnerable.Check Version:
chrome://version/ or 'google-chrome --version' on Linux/macOSVerify Fix Applied:
Verify Chrome version is 142.0.7444.59 or higher after update.📡 Detection & Monitoring
Log Indicators:
- Chrome crash reports
- Browser process termination events
Network Indicators:
- Requests to suspicious domains hosting HTML pages
SIEM Query:
source="chrome" AND (event="crash" OR event="process_termination")