$ 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
Packet_Tracer_2 PascalCTF 2026 24.00 files
Parcel_delivery NNS 2026 – files
Password_Vault DalCTF 2026 24.90 files
Powerful_DFS BKISC 2026 – files
Product CPCTF 2026 – files
Programming_101 Kind4SUS 2026 – files
Project Mangoo HI Cyber Con CTF 2026 – files
Promotion BITSCTF 2026 – files
Puppy_Petsmart LagNCrash 2026 25.00 files
Pure_Notes BrunnerCTF 2026 24.66 files
PyFSB tkbctf 2026 25.00 files
Quantum_Clipboard THEMCTF 2026 – files
Recipe_for_Disaster GPN 2026 – files
Restoration_Registry_Daemon BKISC 2026 – files
Return_to_Sender TexSAW 2026 41.59 files
Revenant MidnightFlag 2026 24.50 files
RogueCart JerseyCTF 2026 37.00 files
Root_of_Dis_trust_Stage_1 NDIASAutomotiveIoT 2026 25.00 files
Root_of_Dis_trust_Stage_2 NDIASAutomotiveIoT 2026 25.00 files
Rude_Guard UTCTF 2026 – files
SIGBOVIK_I TexSAW 2026 41.59 files
SIGBOVIK_III_The_Scroppening TexSAW 2026 41.59 files
SIGBOVIK_II_Errata TexSAW 2026 41.59 files
SOS JerseyCTF 2026 37.00 files
SROP_Detector DalCTF 2026 24.90 files
Sailing_the_Seven_Seas BoroCTF 2026 – files
SarcAsm EHAX 2026 – files
Sasenger SAS 2026 Quals 31.00 files
ScrabASM LA 2026 – files
Sea_Story Bearcat 2026 – files
Secret_Intern_Service THJCC 2026 – files
Secret_Spyglass Bearcat 2026 – files
Shall_We_Play_a_Game JerseyCTF 2026 37.00 files
Shellcode BKISC 2026 – files
Shellcode_1.11_You_Can_Not_Execute BreakTheSyntax 2026 56.25 files
Shellcode_2.22_You_Can_Not_RCE BreakTheSyntax 2026 56.25 files
Shop LYKNCTF 2026 – files
SimpleChat Codegate 2026 Quals – files
SimpleSmart Bhackari 2026 – files
Slot_Machine DalCTF 2026 24.90 files