uhmmm at the moment I don't remember a specific problem regarding mohaa because this game wasn't affected by some bugs, anyway no problem.
go in my advisories section:
http://aluigi.org/adv.htmthen search for any reference to quake 3 and use the proof-of-concepts linked in "The Code" section of the text files versus your server.
alternatively you can avoid to test your server first and trying directly to apply some fixes and work-arounds available on:
http://aluigi.org/patches.htm#quake3