$ 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
Pet_Management PwnSec 2025 – files
Play_Fairi JerseyCTF 2025 24.73 files
Playbook GoogleCTF 2025 – files
Poisoned_Bank cornCTF 2025 23.12 files
Ponality VolgaCTF 2025 Quals 27.14 files
Ponsense VolgaCTF 2025 Quals 27.14 files
Printed BCACTF 2025 – files
Printer BCACTF 2025 – files
Printf BlitzCTF 2025 23.20 files
Printf_Revenge BlitzCTF 2025 23.20 files
Protect_the_Environment FortID 2025 30.00 files
Pwn FortID 2025 30.00 files
Pwn_Me_Baby FullWeakEngineer 2025 24.60 files
QAS UIUCTF 2025 – files
QWV_antagonism DreamhackInvitational 2025 Quals – files
QWV_equilibrium DreamhackInvitational 2025 Quals – files
QWV_fracture DreamhackInvitational 2025 Quals – files
Quack_Quack CyberApocalypse 2025 – files
Quantum_Memory H7CTF 2025 22.56 files
RETirement_Plan UTCTF 2025 – files
ROP_Phobia BlitzCTF 2025 23.20 files
ROP_Thirteen TAMUctf 2025 – files
RandomJS ASIS 2025 Quals 96.29 files
Recipe_Storage BrunnerCTF 2025 24.66 files
Recursion BlitzCTF 2025 23.20 files
Reverse_Polish_Pwn FortID 2025 30.00 files
Rewrite_It_In_Zig AmateursCTF 2025 – files
Rex_s_Counter_Crisis BDSec 2025 15.62 files
Rickrolled Shakti 2025 34.10 files
Riscy_Business_2 CrateCTF 2025 – files
Rokos_Jersey_Lottery JerseyCTF 2025 24.73 files
Rolling_Around DownUnderCTF 2025 91.66 files
SLOTS TFC 2025 – files
SMM_Is_Asleep UIUCTF 2025 – files
SMM_and_IPI_1 CrewCTF 2025 38.93 files
SMM_and_IPI_2 CrewCTF 2025 38.93 files
SMOLLM Hack.lu 2025 98.02 files
SPECUL8 TFC 2025 – files
SPRAKMODELL Hack.lu 2025 98.02 files
SShEllcode L3akCTF 2025 24.43 files