$ ctf42

Pwn CTF challenges

3,922 Pwn CTF challenges from 381 CTFs (2011–2026), 669 with writeups.

Top pwn techniques

#stack-buffer-overflow 48 #format-string 47 #ret2win 41 #rop 35 #use-after-free 31 #shellcode 25 #ret2libc 21 #tcache-poisoning 18 #got-overwrite 16 #heap 16 #buffer-overflow 15 #stack-pivot 14 #heap-overflow 14 #srop 11 #gets 11

Challenges

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Challenge CTF Weight Has
Token_Locker Paradigm 2023 25.00 files wu 3
LeagueOfLamports justCTF 2022 35.66 files wu 3
amongst PlaidCTF 2022 93.67 files wu 3
hall_of_fame SEETF 2022 – files wu 3
hint-finance Paradigm 2022 25.00 files wu 3
just-in-time Paradigm 2022 25.00 files wu 3
merkledrop Paradigm 2022 25.00 files wu 3
rescue Paradigm 2022 25.00 files wu 3
vanity Paradigm 2022 25.00 files wu 3
veryfastvm b01lers 2022 33.05 files wu 3
Baby_Calc HackPack 2021 24.31 files wu 3
House_of_Sice HSCTF 2021 – files wu 3
Jumpy ALLES 2021 – files wu 3
flattened BuckeyeCTF 2021 24.81 files wu 3
more-printf Zh3r0 2021 – files wu 3
replme UMassCTF 2021 23.56 files wu 3
replme2 UMassCTF 2021 23.56 files wu 3
the_pwn_inn 0x41414141 2021 – files wu 3
sice_cream picoCTF 2019 – files wu 3
chessrs
#wasm#rust#use-after-free (uaf)#xss#web
 DiceCTF 2023 36.70 files wu 2
babygame
#variable-overwrite
 DownUnderCTF 2021 – files wu 2
Cache_7
#use-after-free (uaf)#tcache-poisoning
 Shakti 2021 25.00 files wu 2
kcipher
#use-after-free (uaf)#kernel-uaf
 corCTF 2023 36.97 files wu 2
unionized
#union-type-confusion
 MetaCTF 2021 – files wu 2
babyrarf
#type-confusion#info-leak#ret2win
 Union 2021 24.34 files wu 2
Welcome_to_the_Jungle
#tcache-poisoning
 SunshineCTF 2024 38.57 files wu 2
Gradebook
#tcache-poisoning
 K3RN3LCTF 2021 24.37 files wu 2
Meddle
#tcache-dup
 NahamCon 2021 24.98 files wu 2
bot
#strcmp-null-byte-bypass
 LA 2023 – files wu 2
Advanced_Math_Analysis
#strcmp-null-byte-bypass
 BCACTF 2021 – files wu 2
gatekeep
#stack-variable-overwrite
 LA 2023 – files wu 2
Numerology
#stack-pivot
 MetaRed 2021 – files wu 2
beef-of-finitude
#stack-overflow#ret2win
 BlueHens 2021 22.62 files wu 2
browser_insanity
#stack-overflow
 hxp 2022 – files wu 2
EasyRegister
#stack-buffer-overflow#shellcode-injection#leaked-buffer-address
 1337UP 2022 22.49 files wu 2
sir-marksalot
#stack-buffer-overflow#rop#pie-bruteforce
 DamCTF 2021 24.43 files wu 2
OhBabyBaby
#stack-buffer-overflow#ret2win#leaked-address
 S4CTF 2021 24.52 files wu 2
Math_Analysis
#stack-buffer-overflow#ret2win
 BCACTF 2021 – files wu 2
AP_ABCs
#stack-buffer-overflow#gets#variable-overwrite
 BCACTF 2021 – files wu 2
gambler_overflow
#stack-buffer-overflow#gets
 b01lers 2022 33.05 files wu 2