$ 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
ourukla LA 2026 – files
overly_simplified_pwn_challenge_v2 LagNCrash 2026 25.00 files
pCalc Pragyan 2026 1.84 files
padawan_pwn HASBLCTF 2026 – files
past_diary THEMCTF 2026 – files
peekaboo PwnSec 2026 33.89 files
phantom THEMCTF 2026 – files
pokemon CodeVinci 2026 18.57 files
ponbaby VolgaCTF 2026 Quals 38.67 files
poni_barn BreakTheSyntax 2026 56.25 files
printfology MIPT 2026 Quals 24.58 files
pset1 NNS 2026 – files
pwnable_document_fabricator SekaiCTF 2026 79.25 files
q1_Shellgame 0xV01D 2026 V2 19.48 files
q2_RopCSU 0xV01D 2026 V2 19.48 files
q3_The_Vault 0xV01D 2026 V2 19.48 files
qemu_system_cris CSCG 2026 – files
read_exact tkbctf 2026 25.00 files
readme BSidesSF 2026 25.00 files
readwritecallme BSidesSF 2026 25.00 files
readwriteme BSidesSF 2026 25.00 files
ret2win SecLeaf 2026 – files
ret2win TRX 2026 – files
rewind VuwCTF 2026 25.00 files
rimefold Cryovault 2026 Quals 25.00 files
rugdoctor BSidesSF 2026 25.00 files
ruid_login Scarlet 2026 23.42 files
sat_term JerseyCTF 2026 37.00 files
secrets LexingtonInformaticsTournament 2026 84.79 files
sleepy_face CodeVinci 2026 18.57 files
speedjournal Scarlet 2026 23.42 files
spelling_bee b01lers 2026 66.00 files
spiderman LexingtonInformaticsTournament 2026 84.79 files
tcademy LA 2026 – files
thirds GaslightCTF 2026 – files
this_is_art CSCG 2026 – files
this_is_how_you_pwn_the_time_war LA 2026 – files
tic_tac_no LA 2026 – files
transmutation b01lers 2026 66.00 files
triforce_sbx TRX 2026 – files