Considering that Unreal is open source, and we have a guy who (claims) to be THE author
(though I don't see him listed under /info or /credits), discussing bugs and exploits in a public forum is a surefire way to get them patched quickly... as anyone with relatively mediocre C skills could write a patch (if only to disable responsible commands).
We cannot be responsible for organizations that don't have an alert and ready response team standing by to handle Server Triage. Companies that don't properly allocate minds where they are needed, at the expense of the CEO's new Mercedes payments, should and will ultimately suffer. (Unfortunately, large companies simply claim inflated losses in order to recover quasi
damages in tax write-offs)