CVE-2025-14418

7.0 HIGH

📋 TL;DR

This vulnerability allows remote attackers to execute arbitrary code on systems running vulnerable versions of pdfforge PDF Architect. Attackers can exploit this by tricking users into opening malicious XLS files, leading to code execution with the victim's privileges. All users of affected PDF Architect versions are at risk.

💻 Affected Systems

Products:
  • pdfforge PDF Architect
Versions: Specific versions not detailed in advisory; likely multiple recent versions before patch
Operating Systems: Windows
Default Config Vulnerable: ⚠️ Yes
Notes: Vulnerability requires user interaction to open malicious XLS file; default installations are vulnerable.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise with attacker gaining full control of the victim's machine, data theft, ransomware deployment, and lateral movement within the network.

🟠

Likely Case

Malware installation, credential theft, and data exfiltration from the compromised user's account.

🟢

If Mitigated

Limited impact with proper application sandboxing, user awareness training preventing malicious file opens, and endpoint protection blocking exploit attempts.

🌐 Internet-Facing: MEDIUM
🏢 Internal Only: HIGH

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: LIKELY
Unauthenticated Exploit: ✅ No
Complexity: LOW

Exploitation requires user interaction but is technically simple once malicious file is opened; weaponization likely due to RCE nature and file format ubiquity.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Check vendor advisory for specific patched version

Vendor Advisory: https://www.pdfforge.org/security/

Restart Required: Yes

Instructions:

1. Open PDF Architect
2. Navigate to Help > Check for Updates
3. Install available updates
4. Restart application

🔧 Temporary Workarounds

Disable XLS file association

windows

Prevent PDF Architect from automatically opening XLS files

Control Panel > Default Programs > Associate a file type or protocol with a program > Change .xls association to Excel or other safe application

Application restriction policies

windows

Use AppLocker or similar to restrict PDF Architect execution

🧯 If You Can't Patch

  • Implement application whitelisting to prevent unauthorized code execution
  • Deploy endpoint detection and response (EDR) to monitor for suspicious PDF Architect behavior

🔍 How to Verify

Check if Vulnerable:

Check PDF Architect version against vendor's patched version list

Check Version:

In PDF Architect: Help > About

Verify Fix Applied:

Confirm application version is updated to patched release and test with safe XLS file

📡 Detection & Monitoring

Log Indicators:

  • PDF Architect process spawning unexpected child processes
  • Unusual network connections from PDF Architect process
  • File system writes in user directories by PDF Architect

Network Indicators:

  • Outbound connections to suspicious IPs from PDF Architect
  • DNS requests for known malicious domains

SIEM Query:

process_name:"PDFArchitect.exe" AND (child_process_creation OR network_connection)

🔗 References

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