$ 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
Womp_Womp EHAX 2026 – files
Yapster BKCTF 2026 – files
YetAnotherNoteTaker PascalCTF 2026 24.00 files
Yu_Gi_GOh CodeVinci 2026 18.57 files
aName MntcrlCTF 2026 25.00 files
adventure LA 2026 – files
apple_telemetries WRECKCTF 2026 – files
armh MidnightSun 2026 Quals 48.17 files
asan_bazar nullconHackIM 2026 Goa – files
atomizer nullconHackIM 2026 Goa – files
atypical_heap UNbreakableInternational 2026 – files
atypical_heap_revenge UNbreakableInternational 2026 – files
b2b squ1rrel 2026 32.47 files
babbaboon MIPT 2026 Quals 24.58 files
babuin2 VolgaCTF 2026 Quals 38.67 files
baby_bof GreyCatTheFlag 2026 Quals – files
baby_bottle_pinching_hand_pinching_hand TRX 2026 – files
baby_bottle_pinching_hand_pinching_hand_revenge TRX 2026 – files
baby_bufferoverflow HASBLCTF 2026 – files
baby_heap LagNCrash 2026 25.00 files
baby_kpwn WRECKCTF 2026 – files
baby_pwn WRECKCTF 2026 – files
baby_shellcoder HASBLCTF 2026 – files
babyheap GreyCatTheFlag 2026 Quals – files
bag_of_words UMDCTF 2026 – files
big_win K17 2026 24.83 files
bit_flips 0xFUN 2026 17.74 files
bitflip Securinets 2026 Quals 85.12 files
blkmgk MidnightSun 2026 Quals 48.17 files
blockman_builder BSidesSF 2026 25.00 files
bottoms_up MIPT 2026 Quals 24.58 files
bytezoo LilacCTF 2026 25.00 files
bzzzz DawgCTF 2026 66.64 files
cachebrowns BushBash 2026 – files
candy_shop HASBLCTF 2026 – files
canopysaurus CSCG 2026 – files
car_museum upCTF 2026 24.42 files
chaWoW64 Codegate 2026 Quals – files
chain MidnightSun 2026 Quals 48.17 files
chaos 0xFUN 2026 17.74 files