Challenges

Category Web Pwn Reverse Crypto Forensics Misc OSINT Stego Blockchain Hardware Mobile

Difficulty Beginner Easy Medium Hard Insane

CTFtime weight

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Higher weight ≈ harder, more prestigious event.

Year

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CTF

Country

Must have Source / Docker Writeup

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Challenge	CTF	Weight	Category	Has
Refreshments #off-by-one #fastbin-attack #unsorted-bin	StackSmash 2025	24.00	Pwn	files wu 1
three #tcache-dup #unsorted-bin #stdout-file-attack	BCTF 2018	–	Misc	files wu 2