CVE-2025-62219
📋 TL;DR
A double-free vulnerability in Microsoft Wireless Provisioning System allows authenticated attackers to execute arbitrary code with elevated privileges on affected Windows systems. This affects systems where the Wireless Provisioning System component is enabled and accessible to local users.
💻 Affected Systems
- Microsoft Wireless Provisioning System
📦 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 23h2 by Microsoft
Windows 11 24h2 by Microsoft
Windows 11 25h2 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 allowing attackers to bypass security controls, install unauthorized software, and access sensitive data on the compromised system.
If Mitigated
Limited impact due to proper access controls, network segmentation, and endpoint protection preventing successful exploitation.
🎯 Exploit Status
Requires authenticated access and specific conditions to trigger the double-free condition. No public exploit code available at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Microsoft Security Update Guide for specific patch versions
Vendor Advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-62219
Restart Required: Yes
Instructions:
1. Open Windows Update settings
2. Check for updates
3. Install all available security updates
4. Restart the system when prompted
🔧 Temporary Workarounds
Disable Wireless Provisioning Service
windowsStop and disable the Wireless Provisioning System service to prevent exploitation
sc stop WlanSvc
sc config WlanSvc start= disabled
🧯 If You Can't Patch
- Implement strict access controls to limit who can authenticate to affected systems
- Deploy endpoint detection and response (EDR) solutions to detect privilege escalation attempts
🔍 How to Verify
Check if Vulnerable:
Check if Wireless Provisioning System service is running and verify Windows version against affected versions in Microsoft advisoryCheck Version:
winverVerify Fix Applied:
Verify Windows Update history shows the security patch installed and Wireless Provisioning System service is updated📡 Detection & Monitoring
Log Indicators:
- Unusual process creation with elevated privileges
- Access to Wireless Provisioning System components by non-standard users
- Security log events showing privilege escalation
Network Indicators:
- Lateral movement from previously compromised systems
- Unusual authentication patterns to systems with Wireless Provisioning enabled
SIEM Query:
EventID=4688 AND NewProcessName LIKE '%\system32\' AND SubjectUserName NOT IN (expected_admin_users)