$ 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
Broke_College_Students KillerQueen 2021 21.14 files wu 1
COP ICHSA 2021 – files wu 1
Fake_Survey TMUCTF 2021 – files wu 1
Frozen_exploit ImaginaryCTF 2021 – files wu 1
JUMPY TFC 2021 – files wu 1
ListBook 0CTF 2021 Quals – files wu 1
Logme HackPack 2021 24.31 files wu 1
Name_Server Tamil 2021 14.13 files wu 1
Runme3 BSidesSF 2021 23.94 files wu 1
atelier LINE 2021 – files wu 1
catastrophe TSG 2021 – files wu 1
chat TSG 2021 – files wu 1
cling TSG 2021 – files wu 1
japan_travel hxp 2021 99.41 files wu 1
minimemo ASIS 2021 Quals 89.22 files wu 1
notepad Union 2021 24.34 files wu 1
silent-ROP K3RN3LCTF 2021 24.37 files wu 1
v8 UIUCTF 2021 – files wu 1
walkthrough PBjar 2021 23.18 files wu 1
no-eeeeeeeeeeeemoji Dragon 2020 98.00 files wu 1
If_on_a_winters_night_a_traveler 0CTF 2019 Quals – files wu 1
babyaegis 0CTF 2019 Quals – files wu 1
zerotask 0CTF 2019 Quals – files wu 1
Personal_Letter angstromCTF 2018 – files wu 1
Zer0FS 0CTF 2018 Quals – files wu 1
stacksort angstromCTF 2024 – files src
ATM justCTF 2019 24.85 files src
Baby Sandbox 0CTF 2019 Quals – files src
heapify angstromCTF 2024 – files src
easyheap HKCERT 2021 – files src
Spell Caster CCSC CTF 2020 – files src
og angstromCTF 2024 – files src
bap angstromCTF 2024 – files src
fakeobj.py DownUnderCTF 2025 91.66 files src
corporate-cliche DownUnderCTF 2025 91.66 files src
1up_clank_bro NNS 2026 – files
3in1 SekaiCTF 2026 79.25 files
67 0xFUN 2026 17.74 files
67_revenge 0xFUN 2026 17.74 files
AES_AEAD UofTCTF 2026 33.49 files