$ ctf42

BDSec 2026

weight 15.62 CTFtime official repo

BDSec CTF 2026 is an international, 24-hour online jeopardy-style Capture The Flag competition organized by Knight Squad, a cybersecurity team from Bangladesh. Held annually, BDSec CTF is designed to push boundaries, encourage learning, and celebrate strategic brilliance in cybersecurity — open to participants around the globe.

The event pays tribute to Bangladesh’s history of resistance and courage, drawing inspiration from the 1952 Language Movement and the 1971 Liberation War. In this CTF, your mind is your shield, and your keyboard is your weapon.

Whether you're a student just entering the field or a seasoned infosec professional, BDSec CTF 2025 welcomes you to test your skills, think critically, and hack with honor.

Thanks to our sponsors [+] Knight Squad Academy [+] Gen.XYZ [+] NS TechValley

Community Partner : KS HackZone

Pwn 3

Challenge Has
Ekusher_Shobdo files
Muktir_Shongket
#jit-bytecode-verifier-executor-mismatch#jmp-into-literal#shellcode
 files wu 1
Phantom_Device
#use-after-free (uaf)#refcount-mismatch#tcache-grooming#role-forgery
 files wu 1

Reverse 7

Challenge Has
Borrowed_Memory
#bytecode-vm-emulation#xorshift-table-regeneration#checksum-guided-debugging#xor-decryption
 files wu 1
Broken_Printer files
Cold_Start files
Crack_Me_Vault files
Easy_RE_Challenge
#symbol-guided-static-analysis#xor-rol-inversion#decoy-path-elimination
 files wu 1
Four_Registers files
Night_Shift
#pthread-scheduling-analysis#exhaustive-brute-force#fnv-1a-hash
 files wu 1

Forensics 1

Challenge Has
Inside_Job files

Misc 1

Challenge Has
Cordination_password files