CVE-2025-12437
📋 TL;DR
This CVE describes a use-after-free vulnerability in Google Chrome's PageInfo component that could allow heap corruption. Attackers can exploit it by tricking users into performing specific UI gestures on a malicious webpage. All Chrome users on affected versions are vulnerable.
💻 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
Full remote code execution leading to complete system compromise, data theft, or malware installation.
Likely Case
Browser crash (denial of service) or limited information disclosure from memory corruption.
If Mitigated
No impact if Chrome is updated to patched version or if users avoid suspicious websites.
🎯 Exploit Status
Requires user interaction (specific UI gestures) but no authentication. Heap corruption exploitation requires additional steps.
🛠️ 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:
Open Chrome
Click three-dot menu → Help → About Google Chrome
Allow Chrome to check for and install updates
Click 'Relaunch' when prompted
🔧 Temporary Workarounds
Disable JavaScript
allPrevents malicious HTML pages from executing exploit code
chrome://settings/content/javascript → Block
Use Site Isolation
allEnables Chrome's Site Isolation feature for additional protection
chrome://flags/#enable-site-per-process → Enable
🧯 If You Can't Patch
- Restrict web browsing to trusted sites only using browser policies
- Implement application whitelisting to prevent unauthorized Chrome execution
🔍 How to Verify
Check if Vulnerable:
Check Chrome version in About Google Chrome pageCheck Version:
google-chrome --version (Linux) or chrome://version (all platforms)Verify Fix Applied:
Confirm version is 142.0.7444.59 or higher📡 Detection & Monitoring
Log Indicators:
- Chrome crash reports with memory corruption signatures
- Unexpected process termination events
Network Indicators:
- Connections to suspicious domains followed by browser crashes
SIEM Query:
source="chrome_crash_reports" AND (memory_corruption OR use_after_free)