I once scanned myself from internet, and 8010/tcp port was detected.
my PSI jabber file transfer service was exposed to internet.
Then I fuzz this service and found a nice DoS.
A signed integer check lets crash remote PSI's and I think is not possible to overflow the heap, becouse the destination buffer is reallocated to the same amount of bytes to be copied.
I have reported it to the coders, and then they give me the ok to launch the advisory:
Be aware with the services you are exposing to internet, and be aware with your client applications (browser, jabber, msn, email client ..)
code has bugs ;)