CVE-2025-54102
📋 TL;DR
CVE-2025-54102 is a use-after-free vulnerability in Windows Connected Devices Platform Service that allows an authenticated attacker to execute arbitrary code with elevated privileges. This affects Windows systems where the service is running. Attackers must already have local access to exploit this vulnerability.
💻 Affected Systems
- Windows Connected Devices Platform Service
📦 What is this software?
Windows 10 1607 by Microsoft
Windows 10 1607 by Microsoft
Windows 10 1809 by Microsoft
Windows 10 1809 by Microsoft
Windows 10 21h2 by Microsoft
Windows 10 22h2 by Microsoft
Windows 11 22h2 by Microsoft
Windows 11 23h2 by Microsoft
Windows 11 24h2 by Microsoft
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with SYSTEM privileges, enabling installation of persistent malware, credential theft, and lateral movement across the network.
Likely Case
Local privilege escalation from a standard user account to SYSTEM or administrator privileges, allowing attackers to bypass security controls and maintain persistence.
If Mitigated
Limited impact if proper endpoint protection, least privilege principles, and network segmentation are implemented, though local privilege escalation remains possible.
🎯 Exploit Status
Exploitation requires authenticated user access and knowledge of memory manipulation techniques. The use-after-free condition must be triggered with precise timing.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Apply the latest Windows security updates from Microsoft's February 2025 Patch Tuesday or later
Vendor Advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-54102
Restart Required: Yes
Instructions:
1. Open Windows Update settings
2. Click 'Check for updates'
3. Install all available security updates
4. Restart the system when prompted
🔧 Temporary Workarounds
Disable Connected Devices Platform Service
windowsDisables the vulnerable service to prevent exploitation
sc config CDPSvc start= disabled
sc stop CDPSvc
Apply Windows Defender Exploit Guard
windowsConfigure Exploit Protection to mitigate memory corruption attacks
🧯 If You Can't Patch
- Implement strict least privilege access controls to limit user accounts that can log into affected systems
- Deploy endpoint detection and response (EDR) solutions with memory protection capabilities to detect exploitation attempts
🔍 How to Verify
Check if Vulnerable:
Check if CDPSvc service is running and Windows version is within affected range using: sc query CDPSvc and winverCheck Version:
systeminfo | findstr /B /C:"OS Name" /C:"OS Version"Verify Fix Applied:
Verify Windows Update history shows the February 2025 security updates installed and CDPSvc service version is updated📡 Detection & Monitoring
Log Indicators:
- Event ID 4688 with CDPSvc.exe spawning unexpected processes
- Event ID 4697 with service installation attempts
- Unexpected privilege escalation events in security logs
Network Indicators:
- Unusual outbound connections from systems with CDPSvc running
- Lateral movement attempts following local privilege escalation
SIEM Query:
source="windows_security" event_id=4688 process_name="CDPSvc.exe" | stats count by host