$ ctf42

Pwn CTF challenges

3,926 Pwn CTF challenges from 382 CTFs (2011–2026), 1,025 with writeups.

Top pwn techniques

#stack-buffer-overflow 95 #format-string 88 #rop 76 #use-after-free 56 #ret2win 55 #shellcode 48 #ret2libc 37 #heap 35 #heap-overflow 34 #tcache-poisoning 29 #got-overwrite 29 #stack-pivot 25 #buffer-overflow 23 #heap-exploitation 21 #seccomp 19

Challenges

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Challenge CTF Weight Has
Write_Byte_Where Glacier 2023 24.32 files wu 1
sailing_the_c BuckeyeCTF 2024 50.91 files wu 1
Tic_Tac_PWN justCTF 2023 53.00 files wu 1
API6 RealWorld 2022 – files wu 1
quick-mafs TAMUctf 2022 – files wu 1
TriDroid GoogleCTF 2021 – files wu 1
ShellMaster2 Aero 2021 35.17 files wu 1
ShellMaster Aero 2021 35.17 files wu 1
ezheap RCTF 2021 – files wu 1
Puncher m0leCon 2021 Quals 24.55 files wu 1
Impossible_v2 HeroCTF 2023 – files wu 1
An_Attempt_Was_Made MetaCTF 2021 – files wu 1
Note_Taker PatriotCTF 2023 24.52 files wu 1
Banned_Bytes TraceBash 2026 25.00 files wu 1
Firefly_Complete_Combustion UIUCTF 2026 – files wu 1
Legacy_Ledger TraceBash 2026 25.00 files wu 1
Sparxie_Vanishing_Encore UIUCTF 2026 – files wu 1
ppp SekaiCTF 2026 79.25 files wu 1
refraction LA 2026 – files wu 1
vellum WRECKCTF 2026 – files wu 1
Checksumz IrisCTF 2025 34.30 files wu 1
Debug_2 TAMUctf 2025 – files wu 1
solve_all.py m0leCon 2025 Quals 75.00 files wu 1
zip++ Securinets CTF 2025 Quals – files wu 1
Beginner_Pwn_1 SwampCTF 2024 40.40 files wu 1
Empress_of_What PointerOverflow 2024 – files wu 1
Genie_in_an_ELF Glacier 2024 – files wu 1
Imperfect_Impermanent_and_Incomplete PointerOverflow 2024 – files wu 1
Inaccessible BCACTF 2024 – files wu 1
Loabs_House_of_Horrors_Vol.I SpookyCTF 2024 22.40 files wu 1
Make_of_It_What_You_Will PointerOverflow 2024 – files wu 1
Overrun_and_Outdone PointerOverflow 2024 – files wu 1
Pwnage BCACTF 2024 – files wu 1
Snow_Globe Glacier 2024 – files wu 1
The_Trash_Heap_Has_Spoken PointerOverflow 2024 – files wu 1
Watchful_Heavens_Waiting PointerOverflow 2024 – files wu 1
yacc LA 2024 – files wu 1
A_Guilded_Lily PointerOverflow 2023 – files wu 1
Baby_Otter justCTF 2023 53.00 files wu 1
MailService TetCTF 2023 53.89 files wu 1