$ 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
fermat ImaginaryCTF 2024 49.81 files
fizzbuzz CyberOdyssey Akasec 2024 Quals – files
flag_finder Pearl 2024 23.95 files
flipma LA 2024 – files
free2free IERAE 2024 – files
free_free_free SECCON 2024 Quals – files
freedom Nexus 2024 – files
fsophammer LakeCTF 2024 Quals – files
ftp_console Defcamp 2024 Quals – files
fullerene TJCTF 2024 – files
game_of_three cruXipher 2024 – files
gamesay Codegate 2024 Quals – files
gampanglah COMPFEST 2024 – files
gb DeadSec 2024 23.96 files
ggbond XCTF-DubheCTF 2024 – files
gollum BRICS+ 2024 Quals 25.00 files
hackcam R3CTF 2024 23.50 files src
harder_assembly UNbreakableInternational 2024 – files
hashcode CursedCTF 2024 Quals 19.50 files
heap_master N1CTF 2024 89.85 files
heapdivers MidnightFlag 2024 – files
heaping_blind_0_Easy_version CyberSecurityRumble 2024 Quals 100.00 files
heaping_blind_0_Full_version CyberSecurityRumble 2024 Quals 100.00 files
heaping_blind_1 CyberSecurityRumble 2024 Quals 100.00 files
heaping_blind_2 CyberSecurityRumble 2024 Quals 100.00 files
heaps_of_fun AmateursCTF 2024 24.54 files
heapsort LA 2024 – files
heartbeat 0CTF 2024 24.34 files
heat GoogleCTF 2024 – files
heeaap UNbreakableInternational 2024 – files
hopper ImaginaryCTF 2024 49.81 files
hoshmonster RealWorld 2024 – files
iOS_Calculator SanDiego 2024 24.67 files
ictf_band ImaginaryCTF 2024 49.81 files
ideabook AlpacaHack 2024 – files
iloveseccomp LexingtonInformaticsTournament 2024 46.25 files
inbound AlpacaHack 2024 – files
jitinator MCTF 2024 Quals – files
kaleido DreamhackInvitational 2024 Quals – files
kami AfricabattleCTF 2024 Quals – files