$ 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

Filter and sort these in the challenge browser →

Challenge CTF Weight Has
Ret2func THJCC 2024 – files
Returning_to_Winning ShunyaCTF 2024 – files
Reverb WorldWide 2024 – files
Riscy_Business_1 CrateCTF 2024 – files
RiskAndaNormalDay THJCC 2024 – files
Risky_Clue RITSEC 2024 – files
Rock_Paper_Scissors ShunyaCTF 2024 – files
Router4 RealWorld 2024 – files
RoverMaster openECSC 2024 round1 – files
Russian_Roulette 0xL4ugh 2024 25.00 files
SHell_Service vsCTF 2024 34.00 files
SLIME_MACHINE_REVENGE NoHackNoCTF 2024 – files
SLIME_MACHINE_REVENGE_REVENGE NoHackNoCTF 2024 – files
SMS_3 vsCTF 2024 34.00 files
Scanner Wargames.MY 2024 – files
SecEnc 0CTF 2024 24.34 files
Secure_Flag_Terminal SunshineCTF 2024 38.57 files
Sequilitis IrisCTF 2024 24.59 files
Ser_Szwajcarski hxp 2024 – files
Serious_Banking IrisCTF 2024 24.59 files
Shadow DeadSec 2024 23.96 files
ShellMischief OSCTF 2024 – files
Shellcode_Runner_3 HKCERT 2024 Quals – files
Shellcode_Runner_3_Revenge HKCERT 2024 Quals – files
Shellcrunch PatriotCTF 2024 31.83 files
Simple_Swap AptosCodeCollision 2024 – files
SinaScript ASIS 2024 Quals 66.25 files
Slay_the_Spider BSidesSF 2024 – files
Slingring_Factory GreyCatTheFlag 2024 Quals – files
SlowJS SanDiego 2024 24.67 files
Snake MidnightFlag 2024 – files
Snake SanDiego 2024 24.67 files
Snooping Shaastra 2024 – files
So_Much_Cache NahamCon 2024 41.61 files
Spacedrive THCon 2024 – files
Spaceshop THCon 2024 – files
SpermPwn CyberOdyssey Akasec 2024 Quals – files src
SpongeBox BlueWater 2024 82.00 files
Squeezing_Tightly_On_Arm FortID 2024 – files
Squirrel_Messaging_Service squ1rrel 2024 24.25 files