CVE-2025-64469
📋 TL;DR
A stack-based buffer overflow vulnerability in NI LabVIEW's LVResFile::FindRsrcListEntry() function allows attackers to execute arbitrary code or disclose information by tricking users into opening malicious VI files. This affects all NI LabVIEW 2025 Q3 (25.3) and earlier versions. Successful exploitation requires user interaction to open a specially crafted file.
💻 Affected Systems
- NI LabVIEW
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with arbitrary code execution leading to data theft, ransomware deployment, or persistent backdoor installation.
Likely Case
Local privilege escalation or information disclosure from the LabVIEW process memory, potentially leading to further system compromise.
If Mitigated
Limited impact with proper application sandboxing and user privilege restrictions, potentially only crashing the LabVIEW application.
🎯 Exploit Status
Exploitation requires crafting a malicious VI file and convincing a user to open it. No public exploit code is currently available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: NI LabVIEW 2025 Q4 (25.4) or later
Restart Required: Yes
Instructions:
1. Download and install NI LabVIEW 2025 Q4 (25.4) or later from NI website. 2. Close all LabVIEW instances before installation. 3. Restart system after installation completes.
🔧 Temporary Workarounds
Restrict VI file handling
allConfigure system to open VI files only with trusted LabVIEW versions or in isolated environments
Application sandboxing
allRun LabVIEW in sandboxed/isolated environment to limit potential damage
🧯 If You Can't Patch
- Implement strict file handling policies: only open VI files from trusted sources
- Run LabVIEW with minimal user privileges and in isolated virtual environments
🔍 How to Verify
Check if Vulnerable:
Check LabVIEW version via Help > About LabVIEW. If version is 25.3 or earlier, system is vulnerable.Check Version:
On Windows: wmic product where name="LabVIEW" get version. On Linux/macOS: Check installed packages for LabVIEW version.Verify Fix Applied:
Verify LabVIEW version is 25.4 or later in Help > About LabVIEW after patch installation.📡 Detection & Monitoring
Log Indicators:
- LabVIEW crash logs with memory access violations
- Unexpected process creation from LabVIEW
- Multiple failed file open attempts
Network Indicators:
- Unusual outbound connections from LabVIEW process
- File downloads preceding LabVIEW crashes
SIEM Query:
process_name:"LabVIEW.exe" AND (event_id:1000 OR event_id:1001) OR file_extension:".vi" AND suspicious_activity