CVE-2025-59511
📋 TL;DR
This vulnerability in Windows WLAN Service allows an authenticated attacker to manipulate file paths, potentially leading to local privilege escalation. It affects Windows systems with WLAN Service enabled, requiring the attacker to have initial access to the system.
💻 Affected Systems
- Microsoft Windows
📦 What is this software?
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
An authenticated attacker gains SYSTEM-level privileges, enabling complete system compromise, data theft, persistence mechanisms, and lateral movement.
Likely Case
An attacker with standard user privileges elevates to administrative rights, allowing installation of malware, disabling security controls, and accessing sensitive data.
If Mitigated
With proper access controls and monitoring, exploitation attempts are detected and blocked before privilege escalation occurs.
🎯 Exploit Status
Requires authenticated access and knowledge of vulnerable file path manipulation techniques. No public exploit code available at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: To be determined from Microsoft's monthly security updates
Vendor Advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59511
Restart Required: Yes
Instructions:
1. Apply the latest Windows security updates from Microsoft. 2. Restart the system as required. 3. Verify the patch is installed via Windows Update history.
🔧 Temporary Workarounds
Disable WLAN Service
windowsDisable the WLAN AutoConfig service if wireless functionality is not required
sc config WlanSvc start= disabled
sc stop WlanSvc
Restrict Service Permissions
windowsApply stricter ACLs to WLAN Service directories and registry keys
icacls "C:\Windows\System32\wlanapi.dll" /deny Users:(F)
🧯 If You Can't Patch
- Implement strict access controls and monitor for unauthorized privilege escalation attempts
- Segment networks to limit lateral movement and contain potential breaches
🔍 How to Verify
Check if Vulnerable:
Check Windows Update history for missing security patches related to CVE-2025-59511Check Version:
systeminfo | findstr /B /C:"OS Name" /C:"OS Version"Verify Fix Applied:
Verify the specific KB patch for CVE-2025-59511 is installed via 'Get-Hotfix' or Windows Update history📡 Detection & Monitoring
Log Indicators:
- Unusual WLAN Service process behavior
- Failed or successful privilege escalation attempts in Security logs
- Unexpected file operations in WLAN directories
Network Indicators:
- Unusual outbound connections from systems after local compromise
SIEM Query:
EventID=4688 AND ProcessName="*wlan*" AND NewProcessName="*cmd*" OR NewProcessName="*powershell*"