CVE-2025-21301
📋 TL;DR
This vulnerability in Windows Geolocation Service allows unauthorized access to location information without proper permissions. It affects Windows systems where the geolocation service is enabled, potentially exposing sensitive location data to local attackers.
💻 Affected Systems
- Windows Geolocation Service
📦 What is this software?
Windows 10 1507 by Microsoft
Windows 10 1507 by Microsoft
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
An attacker could obtain precise location data of users or devices, enabling physical tracking, surveillance, or targeted attacks based on location patterns.
Likely Case
Local attackers or malicious applications could access location information they shouldn't have permission to view, violating user privacy.
If Mitigated
With proper access controls and service restrictions, the impact is limited to information disclosure with no system compromise.
🎯 Exploit Status
Requires local access or ability to execute code on the target system. Exploitation likely involves API manipulation or permission bypass.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Microsoft Security Update Guide for specific KB numbers
Vendor Advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21301
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 Geolocation Service
windowsTurn off Windows location services to prevent information disclosure
reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\CapabilityAccessManager\ConsentStore\location" /v "Value" /t REG_SZ /d "Deny" /f
Restrict Location Permissions
windowsConfigure location permissions to only allow trusted applications
Start > Settings > Privacy & security > Location > Turn off location services or manage app permissions
🧯 If You Can't Patch
- Implement strict application control policies to prevent unauthorized applications from accessing location APIs
- Use network segmentation to isolate systems with sensitive location requirements
🔍 How to Verify
Check if Vulnerable:
Check Windows version and installed updates via winver command or systeminfoCheck Version:
systeminfo | findstr /B /C:"OS Name" /C:"OS Version"Verify Fix Applied:
Verify the latest security updates are installed and check that location services are properly restricted📡 Detection & Monitoring
Log Indicators:
- Unusual location API calls
- Multiple failed permission requests to location services
- Applications requesting location data without proper user consent
Network Indicators:
- Unexpected geolocation API traffic
- Location data being transmitted to unexpected endpoints
SIEM Query:
EventID=4688 AND (ProcessName LIKE '%location%' OR CommandLine LIKE '%geolocation%') AND NOT UserName IN (trusted_users)