CVE-2025-6231
📋 TL;DR
This vulnerability in Lenovo Vantage allows a local attacker to modify an application configuration file and execute arbitrary code with elevated privileges. It affects Lenovo Vantage users on Windows systems. Attackers need local access to the system to exploit this flaw.
💻 Affected Systems
- Lenovo Vantage
📦 What is this software?
Vantage by Lenovo
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with administrative privileges, allowing installation of malware, data theft, or persistence mechanisms.
Likely Case
Local privilege escalation leading to unauthorized software installation, configuration changes, or lateral movement within the network.
If Mitigated
Limited impact with proper user account controls and file permission restrictions in place.
🎯 Exploit Status
Exploitation requires local access and knowledge of the vulnerable configuration file location. No authentication bypass needed beyond local user access.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified in advisory; update to latest Lenovo Vantage version
Vendor Advisory: https://support.lenovo.com/us/en/product_security/LEN-196648
Restart Required: Yes
Instructions:
1. Open Lenovo Vantage application. 2. Check for updates in settings. 3. Install available updates. 4. Restart the system if prompted.
🔧 Temporary Workarounds
Restrict configuration file permissions
windowsSet strict file permissions on Lenovo Vantage configuration files to prevent unauthorized modification
icacls "C:\Program Files\Lenovo\Vantage\config\*" /deny Users:(W)
Uninstall Lenovo Vantage
windowsRemove the vulnerable software if not required for system functionality
appwiz.cpl
Select Lenovo Vantage and click Uninstall
🧯 If You Can't Patch
- Implement strict file system permissions on Lenovo Vantage directories
- Monitor for unauthorized modifications to Lenovo Vantage configuration files
🔍 How to Verify
Check if Vulnerable:
Check Lenovo Vantage version and compare with latest available version from Lenovo support siteCheck Version:
Check Lenovo Vantage 'About' section in application or look at installed programs listVerify Fix Applied:
Verify Lenovo Vantage is updated to latest version and configuration files have proper permissions📡 Detection & Monitoring
Log Indicators:
- Unauthorized file modifications in Lenovo Vantage directories
- Unexpected process execution with elevated privileges
Network Indicators:
- Unusual outbound connections from Lenovo Vantage processes
SIEM Query:
EventID=4663 AND ObjectName LIKE '%Lenovo\Vantage%' AND Accesses='WriteData'