CVE-2025-62215 Proof-of-Concept

November 14, 2025 · View on GitHub

THIS CODE IS FOR EDUCATIONAL AND SECURITY RESEARCH PURPOSES ONLY.

  • DO NOT use this code on systems you do not own or have explicit written permission to test
  • DO NOT use this code for malicious purposes
  • Unauthorized access to computer systems is illegal in most jurisdictions
  • The authors and contributors are not responsible for any misuse of this code
  • Use at your own risk - this code may cause system instability or crashes

Vulnerability Overview

CVE-2025-62215 is a Windows Kernel privilege escalation vulnerability:

  • Type: Elevation of Privilege (EoP)
  • CVSS Score: 7.0 (High)
  • Root Causes:
    • Race condition in kernel resource synchronization (CWE-362)
    • Double-free memory corruption (CWE-415)
  • Impact: Local authenticated users can escalate to SYSTEM privileges
  • Status: Actively exploited zero-day (patched in November 2025)

Technical Details

Vulnerability Mechanism

  1. Race Condition: Multiple kernel threads access shared resources without proper synchronization
  2. Timing Window: Attackers exploit the timing window to manipulate kernel operations
  3. Double-Free: After winning the race, a double-free bug is triggered, causing heap corruption
  4. Privilege Escalation: The heap corruption is leveraged to execute arbitrary code with SYSTEM privileges

Affected Systems

  • Windows 10 (multiple versions)
  • Windows 11 (multiple versions)
  • Windows Server editions

Build Requirements

  • Visual Studio 2019 or later with Windows SDK
  • Windows Driver Kit (WDK) for kernel components (optional, for advanced features)
  • Administrator privileges for testing (on test systems only)

Compilation

# Build the main exploit
cl.exe /EHsc /O2 exploit.cpp /link /SUBSYSTEM:CONSOLE /OUT:exploit.exe

# Build the advanced exploit module
cl.exe /EHsc /O2 advanced_exploit.cpp /link /SUBSYSTEM:CONSOLE /OUT:advanced_exploit.exe

# Build system info utility
cl.exe /EHsc /O2 system_info.cpp /link /SUBSYSTEM:CONSOLE /OUT:system_info.exe

# Or use the provided build script
build.bat

Usage

# Run the PoC (requires local authentication)
exploit.exe

# With verbose output
exploit.exe --verbose

# Test mode (safer, won't attempt full exploitation)
exploit.exe --test

Mitigation

  • Apply Windows security updates from November 2025 or later
  • Enable kernel-mode hardware-enforced stack protection
  • Monitor for suspicious privilege escalation attempts

References

Responsible Disclosure

If you discover additional variants or related vulnerabilities, please report them through responsible disclosure channels.

License

This code is provided for educational purposes only. See LICENSE file for details.