$ 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
BabyQEMU SECCON 2024 Quals – files
BabyVM R3CTF 2024 23.50 files
Baby_Array.xor openECSC 2024 round3 – files
Baby_CFHP TCP1P 2024 89.85 files
Baby_Fmtstr GreyCatTheFlag 2024 Quals – files
Baby_Kernel 1337UP 2024 – files
Bad_trip Akasec 2024 23.15 files
Battelle_Challenge RITSEC 2024 – files
Beautify_Me KalmarCTF 2024 24.21 files
Beginner_Pwn_2 SwampCTF 2024 40.40 files
Birdy101 AirOverflow 2024 25.00 files
Black_C2 HKCERT 2024 Quals – files
Blazing_Fast_Workout_Planner Hack.lu 2024 100.00 files
BlindVM WMCTF 2024 – files
Blind_Firewall Securinets 2024 Quals 95.59 files
Blind_Writer openECSC 2024 round2 – files
Blu_Ray_of_Death justCTF 2024 Quals 77.17 files
Boot Me 2 m0leCon 2024 Quals 80.00 files
Brainrot_Song_Library COMPFEST 2024 – files
Brainrot_Song_Library_v2.0 COMPFEST 2024 – files
Budget_simulator MidnightFlag 2024 – files
Buffer_Brawl WorldWide 2024 – files
Buffer_Buffet OSCTF 2024 – files
Buffet_Overflow TexSAW 2024 – files
BuggyAllocator XCTF-DubheCTF 2024 – files
Buggy_Paint Mapna 2024 24.59 files
Busy_Gambler_Pwner idekCTF 2024 52.06 files
Buy_an_elephant Cybercoliseum 2024 20.95 files
Byte_Breakup OSCTF 2024 – files
Byte_Modification_Service CyberSpace 2024 24.83 files
CPCT...... CPCTF 2024 – files
CScript WolvCTF 2024 35.25 files
CTF_Registration WorldWide 2024 – files
C_OOOO_RCPU DiceCTF 2024 Quals 54.40 files
C_OOO_RCPU DiceCTF 2024 Quals 54.40 files
CacheHack XCTF-DubheCTF 2024 – files
Canary_Keeper BCACTF 2024 – files
Candy_Shop NTUA_H4CK 2024 24.40 files
Cant_Give_In BSidesSF 2024 – files
Cant_Give_In_secure BSidesSF 2024 – files