Just a quickie I found when I tried to get my friend to connect to me behind NAT: if you send a (presumably) malformed UDP packet to the server, it crashes on Windows.
Version: 0.11.1
Reproduction: just do a nmap -sU -p<server_port> <server_ip>.
Result: Factorio.exe has stopped working. (0x40000015, Unknown Software Exception)
[cube] Malformed UDP packets cause server crash on Windows
Re: [cube] Malformed UDP packets cause server crash on Windo
Thanks for the report. This crash was caused by missing exception handling in packet deserialisation and is fixed for 0.11.2.