$ ctf42

Challenges

Category
Difficulty
CTFtime weight
–
Higher weight ≈ harder, more prestigious event.
Year
–
Must have
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51 challenges · browse all techniques

Challenge CTF Weight Category Has
0day_on_ipaddress upCTF 2026 24.42 Web files
Boo upCTF 2026 24.42 OSINT files
DIG upCTF 2026 24.42 OSINT files
Deoxyribonucleic_acid upCTF 2026 24.42 Misc files
EU_Filter upCTF 2026 24.42 Pwn files
Generous_Allocator upCTF 2026 24.42 Pwn files
Happy_new_year upCTF 2026 24.42 Misc files
Hidden_Signal upCTF 2026 24.42 Crypto files
Inconspicuous_Program upCTF 2026 24.42 Reverse files
Jailed upCTF 2026 24.42 Misc files
LH_RH upCTF 2026 24.42 Crypto files
Left_Behind upCTF 2026 24.42 OSINT files
Locked_Temple upCTF 2026 24.42 Reverse files
Media_meeting upCTF 2026 24.42 Web files
Microsoft_Axel upCTF 2026 24.42 Web files
Microsoft_Axel_Revenge upCTF 2026 24.42 Web files
Minecraft_Enterprise_Edition upCTF 2026 24.42 Reverse files
Old_Calculator upCTF 2026 24.42 Reverse files
Ouro_no_Pesco_o upCTF 2026 24.42 Web files
Ouro_no_Pesco_o_Revenge upCTF 2026 24.42 Web files
Post_Builder upCTF 2026 24.42 Web files
Remember_Me upCTF 2026 24.42 Forensics files
Running_Enthusiast upCTF 2026 24.42 OSINT files
Solar_Eclipse upCTF 2026 24.42 Web files
Weird_Equations upCTF 2026 24.42 Crypto files
car_museum upCTF 2026 24.42 Pwn files
cyberchump upCTF 2026 24.42 Pwn files
mAuth upCTF 2026 24.42 Web files
vibedns upCTF 2026 24.42 Crypto files
xSTFs_Annual_Security_Report upCTF 2026 24.42 Forensics files
xSTFs_Decryption_Capsule upCTF 2026 24.42 Crypto files
A_Computers_Best_Friend UACWS 2022 – Crypto files
Advanced_Remote_Module UACWS 2022 – Pwn files
Badass_quotes UACWS 2022 – Pwn files
Blind_Soldier UACWS 2022 – Crypto files
BlinderEye UACWS 2022 – Web files
Buttons_Are_Utterly_Deceiving_On_Thee UACWS 2022 – Crypto files
CodeCheck9000 UACWS 2022 – Reverse files
Common_modulus_numbers UACWS 2022 – Crypto files
Jail_Escape UACWS 2022 – Pwn files