The following code is for security research and authorized testing only.
python
# CVE-2025-59206 - Windows ReFS Deduplication Service EoP PoC (Conceptual)
# WARNING: This is a conceptual PoC for educational and research purposes only.
# Exploiting this vulnerability without authorization is illegal.
# The actual exploitation requires deep understanding of:
# 1. ReFS deduplication service internals
# 2. Windows kernel memory management
# 3. Specific vulnerable code path in dedup engine
# Conceptual exploit flow:
# 1. Create or identify a ReFS volume with deduplication enabled
# 2. Prepare the environment for triggering the vulnerable code path
# 3. Exploit the vulnerability to gain SYSTEM privileges
import ctypes
import os
import struct
def check_refs_volume():
"""Check if the current volume is a ReFS volume with dedup enabled."""
import subprocess
result = subprocess.run(
['fsutil', 'fsinfo', 'volumeinfo', 'C:'],
capture_output=True, text=True
)
return 'ReFS' in result.stdout
def enable_dedup():
"""Enable deduplication on the ReFS volume (requires admin)."""
import subprocess
subprocess.run(
['Enable-DedupVolume', '-Volume', 'C:'],
capture_output=True, shell=True
)
def trigger_vulnerability():
"""
Conceptual trigger for CVE-2025-59206.
The actual exploit would interact with the dedup service
through specific IOCTL calls or filesystem operations
to trigger the privilege escalation condition.
"""
# Step 1: Open handle to dedup service device
# Step 2: Send crafted input to trigger the vulnerable code path
# Step 3: Leverage the memory corruption to overwrite token privileges
# Step 4: Escalate to SYSTEM
pass
if __name__ == "__main__":
if check_refs_volume():
print("[*] ReFS volume detected")
trigger_vulnerability()
else:
print("[-] No ReFS volume found")