$ 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
trustSQL_plus LilacCTF 2026 25.00 files
tuttis pingCTF 2026 46.20 files
ucas GaslightCTF 2026 – files
uprobe UofTCTF 2026 33.49 files
velvet_table UMDCTF 2026 – files
verified_msg tkbctf 2026 25.00 files
waf K17 2026 24.83 files
warm_up THEMCTF 2026 – files
warmth DawgCTF 2026 66.64 files
wromwarp BSidesSF 2026 25.00 files
yolo squ1rrel 2026 32.47 files
zagjail TAMUctf 2026 – files
0x0f05 H7CTF 2025 22.56 files
2025 CPCTF 2025 – files
256 HaixlaChapelle 2025 – files
2password LA 2025 – files
64_bits_in_my_Ark_and_Texture DawgCTF 2025 69.00 files
A515 N0PSctf 2025 24.34 files
AKVC CyKor 2025 – files
ASISGX ASIS 2025 Quals 96.29 files
ASIS_QShredder ASIS 2025 Finals 96.29 files
A_childs_dream Srdnlen 2025 – files
Admin Codefest 2025 24.02 files
Adversarial_Beaver GreyCatTheFlag 2025 32.92 files
Affein Dreamhack 2025 – files
Aladdin_ka_Chirag BackdoorCTF 2025 – files
Aliasing_Proplems WorldWide 2025 24.48 files
Amogus Shakti 2025 34.10 files
Animal_Flat Kind4SUS 2025 – files
Archive_Keeper NexHunt 2025 – files
Arm_World WorldWide 2025 24.48 files
Armsdealer CrateCTF 2025 – files
Awesome_Flip WorldWide 2025 24.48 files
BLAST DownUnderCTF 2025 91.66 files
BabyFilter 0CTF 2025 24.34 files
BabyNotes ASIS 2025 Finals 96.29 files
BabyStack TSCCTF 2025 – files
Baby_Heap justCTF 2025 97.20 files
Baby_PWN BITSCTF 2025 – files
Baby_ROP_which_LemonTea_wants NoHackNoCTF 2025 23.47 files