CVE-2025-2503
📋 TL;DR
A local privilege escalation vulnerability in Lenovo PC Manager allows attackers with local access to delete arbitrary files with elevated system permissions. This affects Windows systems running vulnerable versions of Lenovo PC Manager. The vulnerability stems from improper permission handling (CWE-732).
💻 Affected Systems
- Lenovo PC Manager
📦 What is this software?
Pcmanager by Lenovo
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise through deletion of critical system files, leading to OS corruption, data loss, or disabling of security controls.
Likely Case
Targeted file deletion attacks against specific users or applications, potentially disrupting business operations or destroying important data.
If Mitigated
Limited impact if proper access controls and monitoring are in place, though local attackers could still cause targeted damage.
🎯 Exploit Status
Exploitation requires local access but appears straightforward based on vulnerability description.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Lenovo advisory for specific patched version
Vendor Advisory: https://iknow.lenovo.com.cn/detail/428586
Restart Required: Yes
Instructions:
1. Visit Lenovo support website. 2. Download latest Lenovo PC Manager update. 3. Install update. 4. Restart system.
🔧 Temporary Workarounds
Uninstall Lenovo PC Manager
windowsRemove vulnerable software entirely if not required
Control Panel > Programs > Uninstall Lenovo PC Manager
Restrict local user permissions
windowsLimit standard user accounts to reduce attack surface
🧯 If You Can't Patch
- Monitor for suspicious file deletion activities using Windows Event Logs
- Implement strict access controls and limit local administrative privileges
🔍 How to Verify
Check if Vulnerable:
Check Lenovo PC Manager version against advisory; vulnerable if running affected versionCheck Version:
Check Lenovo PC Manager 'About' section or Windows Programs listVerify Fix Applied:
Verify Lenovo PC Manager is updated to patched version or removed from system📡 Detection & Monitoring
Log Indicators:
- Windows Security Event ID 4663 (file deletion) with elevated privileges
- Unexpected file deletions in system directories
Network Indicators:
- None - local attack only
SIEM Query:
EventID=4663 AND SubjectUserName NOT IN (authorized_users) AND ObjectName LIKE '%system%'