CVE-2025-62218
📋 TL;DR
A race condition vulnerability in Microsoft Wireless Provisioning System allows authenticated attackers to gain elevated privileges on affected systems. This affects systems running vulnerable versions of Microsoft Windows with the Wireless Provisioning System component enabled. Attackers must already have local access to exploit this vulnerability.
💻 Affected Systems
- Microsoft Windows
- 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/administrator privileges, enabling installation of malware, data theft, and persistence mechanisms.
Likely Case
Privilege escalation from standard user to administrator, allowing unauthorized access to sensitive data and system configuration changes.
If Mitigated
Limited impact with proper access controls and monitoring, though privilege escalation could still occur if exploited.
🎯 Exploit Status
Requires authenticated access and precise timing to trigger race condition. No public exploits 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-2025-62218
Restart Required: Yes
Instructions:
1. Apply latest Windows security updates via Windows Update or WSUS. 2. Restart affected systems. 3. Verify patch installation through Windows Update history.
🔧 Temporary Workarounds
Disable Wireless Provisioning Service
windowsTemporarily disable the Wireless Provisioning System service if not required
sc config WlanSvc start= disabled
net stop WlanSvc
Restrict Service Permissions
windowsApply stricter ACLs to Wireless Provisioning System service
sc sdset WlanSvc D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)
🧯 If You Can't Patch
- Implement strict access controls and monitoring for local user accounts
- Use application whitelisting to prevent unauthorized privilege escalation attempts
🔍 How to Verify
Check if Vulnerable:
Check Windows Update history for missing security patches related to CVE-2025-62218Check Version:
systeminfo | findstr /B /C:"OS Name" /C:"OS Version"Verify Fix Applied:
Verify patch KB number from Microsoft advisory is installed via 'wmic qfe list' or Get-HotFix in PowerShell📡 Detection & Monitoring
Log Indicators:
- Unusual service start/stop events for WlanSvc
- Privilege escalation attempts in Security logs
- Multiple concurrent access attempts to wireless provisioning resources
Network Indicators:
- Not applicable - local exploitation only
SIEM Query:
EventID=4688 AND (NewProcessName LIKE '%WlanSvc%' OR ParentProcessName LIKE '%WlanSvc%') AND SubjectUserName NOT IN (authorized_users)