CVE-2025-2631
📋 TL;DR
An out-of-bounds write vulnerability in NI LabVIEW's InitCPUInformation() function allows attackers to execute arbitrary code or disclose information by tricking users into opening malicious VI files. This affects all NI LabVIEW 2025 Q1 and earlier versions. Successful exploitation requires user interaction with a specially crafted file.
💻 Affected Systems
- NI LabVIEW
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with attacker gaining the same privileges as the LabVIEW user, potentially leading to data theft, ransomware deployment, or persistent backdoor installation.
Likely Case
Local privilege escalation or information disclosure from the LabVIEW process memory, potentially exposing sensitive data or allowing further system exploitation.
If Mitigated
Limited impact with proper application whitelisting and user training preventing malicious file execution.
🎯 Exploit Status
Exploitation requires user interaction to open a malicious VI file. No public exploit code is currently available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: NI LabVIEW 2025 Q2 or later
Vendor Advisory: https://www.ni.com/en/support/security/available-critical-and-security-updates-for-ni-software/out-of-bounds-write-vulnerabilities-in-ni-labview.html
Restart Required: Yes
Instructions:
1. Download NI LabVIEW 2025 Q2 or later from NI website
2. Run the installer with administrative privileges
3. Follow the installation wizard
4. Restart the system after installation completes
🔧 Temporary Workarounds
Restrict VI file execution
allConfigure application control policies to only allow trusted VI files to execute in LabVIEW.
User awareness training
allTrain users to only open VI files from trusted sources and verify file integrity before opening.
🧯 If You Can't Patch
- Implement application whitelisting to restrict LabVIEW execution to authorized systems only.
- Use network segmentation to isolate LabVIEW systems from critical infrastructure.
🔍 How to Verify
Check if Vulnerable:
Check LabVIEW version via Help > About LabVIEW. If version is 2025 Q1 or earlier, the system is vulnerable.Check Version:
On Windows: Check via LabVIEW GUI Help > About. On command line: Not directly available.Verify Fix Applied:
Verify LabVIEW version is 2025 Q2 or later in Help > About LabVIEW after applying the update.📡 Detection & Monitoring
Log Indicators:
- Unusual LabVIEW process crashes
- Suspicious VI file execution events in application logs
- Unexpected memory access violations in system logs
Network Indicators:
- Unusual outbound connections from LabVIEW process
- File transfers from LabVIEW systems to unknown destinations
SIEM Query:
source="windows" EventCode=1000 ProcessName="LabVIEW.exe" OR source="syslog" process="LabVIEW" severity=ERROR