CVE-2025-47760
📋 TL;DR
This vulnerability allows attackers to execute arbitrary code on systems running vulnerable versions of V-SFT software by exploiting a stack-based buffer overflow. Attackers can achieve this by tricking users into opening specially crafted V7 or V8 files. All users of V-SFT v6.2.5.0 and earlier are affected.
💻 Affected Systems
- V-SFT
📦 What is this software?
Monitouch V Sft by Fujielectric
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with attacker gaining complete control over the affected system, enabling data theft, lateral movement, and persistent access.
Likely Case
Application crash leading to denial of service, with potential for information disclosure from memory contents.
If Mitigated
Limited impact with proper file validation and user awareness preventing malicious file execution.
🎯 Exploit Status
Requires user interaction to open malicious file. Exploit development requires understanding of the specific buffer overflow in VS6MemInIF!set_temp_type_default function.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check vendor advisory for latest patched version
Vendor Advisory: https://monitouch.fujielectric.com/site/download-e/09vsft6_inf/Search.php
Restart Required: Yes
Instructions:
1. Visit the vendor advisory URL
2. Download the latest patched version of V-SFT
3. Install the update following vendor instructions
4. Restart the application and verify functionality
🔧 Temporary Workarounds
Restrict file types
allBlock V7 and V8 file extensions at network perimeter and endpoint security tools
User awareness training
allTrain users to avoid opening V7/V8 files from untrusted sources
🧯 If You Can't Patch
- Implement application whitelisting to prevent unauthorized V-SFT execution
- Deploy endpoint detection and response (EDR) to monitor for suspicious file opening behavior
🔍 How to Verify
Check if Vulnerable:
Check V-SFT version in application about dialog or installation directoryCheck Version:
Check Help > About in V-SFT application or examine installed program version in Windows Control PanelVerify Fix Applied:
Verify installed version is newer than v6.2.5.0 and test with known safe V7/V8 files📡 Detection & Monitoring
Log Indicators:
- Application crash logs from V-SFT
- Unexpected file opening events for V7/V8 extensions
Network Indicators:
- Downloads of V7/V8 files from untrusted sources
- Unusual outbound connections after V-SFT execution
SIEM Query:
source="V-SFT" AND (event_type="crash" OR file_extension IN ("v7", "v8"))