The following code is for security research and authorized testing only.
python
import Scapy
def generate_malformed_pcap(filename):
"""
Generate a pcap file with a malformed ASN.1 PER payload.
This is a generic PoC structure to test the dissector stability.
"""
# Craft a basic UDP packet
pkt = IP(dst="127.0.0.1")/UDP(dport=12345)
# Append a payload that mimics malformed ASN.1 PER data
# Specific bytes required to trigger the crash are omitted for safety,
# but this structure demonstrates the delivery method.
malformed_payload = b"\x00\x01\x02\xff\xff\x00"
pkt = pkt / Raw(load=malformed_payload)
# Save to pcap
wrpcap(filename, [pkt])
print(f"[+] Generated test file: {filename}")
if __name__ == "__main__":
generate_malformed_poc("cve_2026_6527_test.pcap")