$ ctf42

Challenges

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

Challenge CTF Weight Category Has
nothing_but_pow_this_season BKCTF 2026 – OSINT files
Beauty_Beauty_Lake LYKNCTF 2026 – OSINT files
Control_Freak_3 LYKNCTF 2026 – Reverse files
Cr4ck_1 LYKNCTF 2026 – Reverse files
Cr4ck_2 LYKNCTF 2026 – Reverse files
Cr4ck_3 LYKNCTF 2026 – Reverse files
Cyclic_Echo LYKNCTF 2026 – Crypto files
Echoes LYKNCTF 2026 – Forensics files
Elliptic_Curve_Cryptography LYKNCTF 2026 – Misc files
Far_Away LYKNCTF 2026 – OSINT files
Far_Away_Revenge LYKNCTF 2026 – OSINT files
Glyph_Cache LYKNCTF 2026 – Pwn files
IMPORTANT_DEBRIS LYKNCTF 2026 – OSINT files
Inferior_Student LYKNCTF 2026 – Reverse files
Miss_My_Home_D LYKNCTF 2026 – OSINT files
Miss_My_School LYKNCTF 2026 – OSINT files
Noisy_Broadcast LYKNCTF 2026 – Crypto files
NotPet_y_a LYKNCTF 2026 – Forensics files
One_Stroke LYKNCTF 2026 – Forensics files
REDACTED_FRAME LYKNCTF 2026 – OSINT files
Remedy LYKNCTF 2026 – Forensics files
Replay_Jasmine LYKNCTF 2026 – Crypto files
Route_to_Nowhere LYKNCTF 2026 – OSINT files
SHA256 LYKNCTF 2026 – Crypto files
Shop LYKNCTF 2026 – Pwn files
Shortcut LYKNCTF 2026 – Crypto files
Sleepless_Machine LYKNCTF 2026 – Crypto files
Static LYKNCTF 2026 – Misc files
THE_BACKROOM_BABY LYKNCTF 2026 – Misc files
THE_BACKROOM_REVENGE LYKNCTF 2026 – Misc files
Tattoo LYKNCTF 2026 – OSINT files
Thanh_Hoa_1 LYKNCTF 2026 – Forensics files
Thanh_Hoa_2 LYKNCTF 2026 – Forensics files
UNNAMED_MERCHANT LYKNCTF 2026 – OSINT files
What_Does_the_Cat_Say LYKNCTF 2026 – OSINT files
Whispering LYKNCTF 2026 – Crypto files
ez_pwn_revenge LYKNCTF 2026 – Pwn files
golfing LYKNCTF 2026 – Pwn files
2much ISITDTU 2024 Quals 51.00 Reverse files
Another_one ISITDTU 2024 Quals 51.00 Web files