OffSec Exploit Developer
OSED is OffSec's certification for Windows user mode exploit development, earned through the EXP-301 course and a 48-hour practical exam. It covers writing custom exploits from scratch, bypassing protections like DEP and ASLR, and crafting shellcode against real binaries. Together with OSWE and OSEP, it forms part of the requirements for OffSec's OSCE3 expert designation.