$ 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
teemo_tuesday smileyCTF 2025 48.61 files
teenage_rof CTF@AC 2025 Quals 24.53 files
the_mound LexingtonInformaticsTournament 2025 67.32 files
tick_tock pingCTF 2025 32.50 files
tinyfs SECCON 2025 Quals – files
tokaido VuwCTF 2025 – files
trap cornCTF 2025 23.12 files
u_get_me_write K17 2025 24.83 files
ultimate_extensible_firmware_interface MaltaCTF 2025 Quals 24.95 files
unsafe LA 2025 – files
unserialize SECCON 2025 Quals – files
username_checker osuigaming 2025 – files
v9 ToH 2025 24.27 files
vault ScriptCTF 2025 – files
vfs1 P3rf3ctr00t 2025 – files
vibe_kode BackdoorCTF 2025 – files
vibexec IERAE 2025 – files
vkfs SekaiCTF 2025 55.00 files
webz GoogleCTF 2025 – files
where b01lers 2025 44.50 files
where_is_my_rop TPCTF 2025 – files
window_bread TSCCTF 2025 – files
wrong_warp TJCTF 2025 – files
x864Oracle Ulisse 2025 24.81 files
xps UNbreakableInternational 2025 Quals – files
xrop Dreamhack 2025 – files
zip++ Securinets 2025 Quals 70.50 files
0xterminal AfricabattleCTF 2024 Quals – files
2048_hacker_0 Block 2024 – files
2048_hacker_1 Block 2024 – files
52_card_monty LA 2024 – files
53_card_monty LA 2024 – files
64kallocator MidnightFlag 2024 – files
A_Day_at_the_Races FortID 2024 – files
About_Time Shaastra 2024 – files
Achilles MCTF 2024 Quals – files
Adventure Pearl 2024 23.95 files
Amnesia TCP1P 2024 89.85 files
Attack_Attack_Win CPCTF 2024 – files
BabyKernel MidnightSun 2024 Quals 35.74 files