What Language Should I Learn?

Please tell me what language i should learn so that i am able to write exploits payloads and scripts.

I know C,C++

i have been through some articles but i dont get what is the exact name called for exploit writing or payload wiriting,.. because i know basic c and c++.

And to make exploits and payload do i have to learn socket programming or network programming, or is it called virus programming. please tell me the exact term so that i can learn it.