#brainfuck CTF challenges
9 CTF challenges using brainfuck from 9 CTFs (2019–2026), 9 with writeups. Mostly Reverse (44%) and Misc (22%).
Reverse · 4 Misc · 2 Pwn · 2 Crypto · 1
Often combined with
#out-of-bounds-read 1 #nested-encoding 1 #buffer-overflow 1 #timing-side-channel 1 #substitution-cipher 1 #esolang 1 #jit-spray 1 #shellcode 1
Challenges
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| Challenge | CTF | Weight | Category | Has |
|---|---|---|---|---|
| BF_means_best_friend_right | HackPack 2021 | 24.31 | Reverse | files wu 3 |
| CrossingTheRedSea | VishwaCTF 2023 | 22.69 | Crypto | files wu 2 |
| BrainJIT | zer0pts 2023 | 52.62 | Pwn | files wu 1 |
| F_K | ScriptCTF 2026 | – | Reverse | files wu 1 |
| bfkush1 | Blaze 2019 | 24.07 | Misc | files wu 1 |
| Mind_Boggle | BuckeyeCTF 2025 | – | Misc | files wu 1 |
| BrainSim | COMPFEST 2021 | – | Pwn | files wu 1 |
| My_Brain_Hurts | BCACTF 2024 | – | Reverse | files wu 1 |
| No_Thoughts_Head_Empty | ImaginaryCTF 2021 | – | Reverse | files wu 1 |