CVE-2025-7228

7.8 HIGH

📋 TL;DR

This vulnerability allows remote attackers to execute arbitrary code on systems running vulnerable versions of INVT VT-Designer by tricking users into opening malicious PM3 files. The flaw exists in how the software parses PM3 files, enabling attackers to write beyond allocated memory boundaries and gain control of the application process.

💻 Affected Systems

Products:
  • INVT VT-Designer
Versions: Specific versions not detailed in advisory, but all versions before vendor patch are likely affected
Operating Systems: Windows
Default Config Vulnerable: ⚠️ Yes
Notes: Requires user interaction to open malicious PM3 file. Industrial control systems using VT-Designer for programming INVT devices are at risk.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise with attacker gaining the same privileges as the VT-Designer user, potentially leading to lateral movement, data theft, or ransomware deployment.

🟠

Likely Case

Local privilege escalation leading to application compromise, data loss, and potential foothold for further attacks within the network.

🟢

If Mitigated

Limited impact with proper application sandboxing and user privilege restrictions, potentially only affecting the VT-Designer application itself.

🌐 Internet-Facing: MEDIUM
🏢 Internal Only: HIGH

🎯 Exploit Status

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

Exploitation requires user interaction (opening malicious file). The vulnerability is in file parsing logic, making reliable exploitation possible but requiring specific file crafting.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Not specified in advisory

Vendor Advisory: https://www.zerodayinitiative.com/advisories/ZDI-25-479/

Restart Required: Yes

Instructions:

1. Contact INVT for security updates
2. Apply the latest VT-Designer patch from official vendor sources
3. Restart affected systems after patching
4. Verify patch installation

🔧 Temporary Workarounds

Restrict PM3 file handling

windows

Block or restrict opening of PM3 files from untrusted sources

Application sandboxing

windows

Run VT-Designer with reduced privileges and in isolated environments

🧯 If You Can't Patch

  • Implement strict file handling policies to prevent opening PM3 files from untrusted sources
  • Deploy application control solutions to restrict VT-Designer execution to trusted environments only

🔍 How to Verify

Check if Vulnerable:

Check VT-Designer version against vendor patched versions. Review if PM3 file parsing functionality is enabled.

Check Version:

Check VT-Designer 'About' dialog or installation directory for version information

Verify Fix Applied:

Verify VT-Designer has been updated to latest version from official vendor source. Test with known safe PM3 files.

📡 Detection & Monitoring

Log Indicators:

  • Unexpected VT-Designer crashes
  • Suspicious PM3 file access attempts
  • Unusual process creation from VT-Designer

Network Indicators:

  • External downloads of PM3 files followed by VT-Designer execution

SIEM Query:

Process:VT-Designer.exe AND (FileExtension:pm3 OR Crash OR SuspiciousChildProcess)

🔗 References

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