CVE-2025-62208
📋 TL;DR
Windows License Manager logs sensitive information to local files, allowing authenticated local attackers to read these logs and potentially obtain credentials or other confidential data. This affects Windows systems with License Manager enabled and logging configured.
💻 Affected Systems
- Windows License Manager
📦 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
Windows 11 25h2 by Microsoft
⚠️ Risk & Real-World Impact
Worst Case
An authenticated attacker could extract credentials, license keys, or other sensitive data from log files, leading to privilege escalation or lateral movement within the network.
Likely Case
Local users with standard privileges could read sensitive information from log files, potentially exposing credentials or configuration details.
If Mitigated
With proper access controls and log file permissions, the risk is limited to authorized administrators who already have access to sensitive data.
🎯 Exploit Status
Exploitation requires local authenticated access to read log files. No public exploit code is currently available.
🛠️ 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-2025-62208
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
Restrict log file permissions
windowsSet strict permissions on License Manager log files to prevent unauthorized reading
icacls "C:\Windows\Logs\LicenseManager\*" /inheritance:r /grant:r "SYSTEM:(OI)(CI)F" "Administrators:(OI)(CI)F" /deny "Users:(OI)(CI)R"
Disable verbose logging
windowsConfigure License Manager to log only essential information
reg add "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SoftwareProtectionPlatform" /v "LogLevel" /t REG_DWORD /d 1 /f
🧯 If You Can't Patch
- Implement strict access controls on log directories to limit read access to administrators only
- Regularly monitor and audit access to License Manager log files for suspicious activity
🔍 How to Verify
Check if Vulnerable:
Check if sensitive information appears in License Manager log files at C:\Windows\Logs\LicenseManager\Check Version:
systeminfo | findstr /B /C:"OS Name" /C:"OS Version"Verify Fix Applied:
Verify Windows Update history shows the relevant security update installed and check that log files no longer contain sensitive information📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to License Manager log files
- Sensitive data patterns in log files (credentials, keys, etc.)
Network Indicators:
- N/A - This is a local information disclosure vulnerability
SIEM Query:
EventID=4663 AND ObjectName LIKE '%LicenseManager%' AND Accesses LIKE '%ReadData%'