CVE-2025-12286
📋 TL;DR
CVE-2025-12286 is an unquoted search path vulnerability in VeePN's AVService component that allows local attackers to execute arbitrary code by placing malicious executables in specific directories. This affects VeePN users on Windows systems with local access to the machine. The vulnerability requires high complexity to exploit and local access.
💻 Affected Systems
- VeePN
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Local privilege escalation leading to full system compromise, installation of persistent malware, or lateral movement within the network.
Likely Case
Limited local privilege escalation allowing attackers to gain higher privileges than their current user account.
If Mitigated
No impact if proper access controls prevent local users from writing to the vulnerable directory path.
🎯 Exploit Status
Exploitation requires local access and ability to write to specific directories in the search path.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown - vendor did not respond to disclosure
Vendor Advisory: None available
Restart Required: No
Instructions:
No official patch available. Consider upgrading to any version above 1.6.2 if available, or apply workarounds.
🔧 Temporary Workarounds
Remove vulnerable service
windowsUninstall or disable the vulnerable AVService component
sc stop avservice
sc delete avservice
Restrict directory permissions
windowsSet strict ACLs on C:\Program Files (x86)\VeePN\avservice\ directory to prevent unauthorized writes
icacls "C:\Program Files (x86)\VeePN\avservice\" /inheritance:r /grant:r "SYSTEM:(OI)(CI)F" "Administrators:(OI)(CI)F" "Users:(OI)(CI)RX"
🧯 If You Can't Patch
- Implement strict access controls to prevent local users from writing to Program Files directories
- Monitor for suspicious file creation in C:\Program Files (x86)\VeePN\avservice\ directory
🔍 How to Verify
Check if Vulnerable:
Check VeePN version: Open VeePN application and check About section, or check file properties of avservice.exe for version information.Check Version:
wmic datafile where name='C:\\Program Files (x86)\\VeePN\\avservice\\avservice.exe' get versionVerify Fix Applied:
Verify version is above 1.6.2, or check that avservice.exe is no longer present or has proper quotes in service configuration.📡 Detection & Monitoring
Log Indicators:
- Windows Event Logs showing service start failures
- Security logs showing unauthorized file creation in Program Files directories
Network Indicators:
- Unusual outbound connections from avservice.exe process
SIEM Query:
Process Creation where ImagePath contains 'avservice.exe' AND CommandLine does not contain quotes around path