Unidentified subject!

[sanarus]

        Hello, all ;)
        I've recently installed on my debian potato the
telnetd 0.17-5. And after I tried to exploit this, with
7350854.c exploit. But, fortunately, nothing was wrong,
telnetd survived ok.
        I have a question: is the telnetd 0.17-5 exploitable
and where to get exploit to try security?
        Best regards,
        Mike