$ ctf42

#shellcode CTF challenges

45 CTF challenges using shellcode from 32 CTFs (2018–2026), 45 with writeups. Mostly Pwn (56%) and Misc (42%).

Pwn · 25 Misc · 19 Reverse · 1

Often combined with

#stack-buffer-overflow 5 #stack-pivot 3 #srop 3 #orw 3 #seccomp-bypass 2 #arbitrary-write 2 #restricted-charset 2 #seccomp 2 #mprotect 2 #rbp-lsb-overwrite 1 #off-by-one 1 #jit-bytecode-verifier-executor-mismatch 1 #jmp-into-literal 1 #rop 1 #elf-patching 1

Challenges

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Challenge CTF Weight Category Has
Muktir_Shongket BDSec 2026 15.62 Pwn files wu 1
MightyDragon 0CTF 2018 Quals – Pwn files wu 1
File-V Codegate 2022 Quals – Pwn files wu 1
Embryobot BraekerCTF 2024 24.72 Reverse files wu 1
furor-RPI UMDCTF 2021 – Pwn files wu 1