Misc CTF challenges

3,995 Misc CTF challenges from 420 CTFs (2011–2026), 705 with writeups.

Top misc techniques

Challenges

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Challenge	CTF	Weight	Has
BabyBufferOverflow #stack-buffer-overflow	kksctf 2019	–	files wu 3
small_boi #srop #sigreturn-oriented-programming #stack-buffer-overflow	CSAW 2019 Quals	43.00	files wu 3
Blockchain_Re_Remix #smart-contract #arbitrary-storage-write	SekaiCTF 2023	24.86	files wu 3
Minishell #shellcode-stager #orw-shellcode #tiny-shellcode	Pwn2Win 2018	29.31	files wu 3
PPowerenCryption #shellcode #powerpc #xor-encoding	UTCTF 2019	–	files wu 3
shellcoder #shellcode #memfd-create #execveat	RCTF 2019	–	files wu 3
yunospace #shellcode	hxp 2018	42.00	files wu 3
ShadowStuck #shadow-stack-overwrite	KipodAfterFree 2020	24.61	files wu 3
Blacklist #seccomp	FwordCTF 2020	24.42	files wu 3
pwn5 #rop #stack-buffer-overflow	TAMUctf 2019	–	files wu 3
hipwn #rop #ret2syscall #static-binary	zer0pts 2020	24.56	files wu 3
classic #rop #ret2libc #stack-pivot	SECCON 2018 Quals	36.92	files wu 3
unary #rop #ret2libc	SuSeC 2020	24.15	files wu 3
load #rop #orw	TokyoWesterns 2018	–	files wu 3
BabyROP #rop	Harekaze 2019	23.87	files wu 3
Combo_Chain_Lite #rop	HSCTF 2019	–	files wu 3
poor_canary #rop	hxp 2018	42.00	files wu 3
start #rop	HITCON 2017 Quals	69.38	files wu 3
too_slow #reversing #xor #key-derivation	rgbCTF 2020	19.74	files wu 3
gotmilk #reversing #bst-index-lookup #flag-reconstruction	CSAW 2019 Quals	43.00	files wu 3
osrs #ret2win #stack-buffer-overflow	TJCTF 2020	–	files wu 3
Pancakes #ret2win	HacktivityCon 2020	21.86	files wu 3
dangerous #ret2win	NahamCon 2020	23.72	files wu 3
shellthis #ret2win	DownUnderCTF 2020	24.44	files src wu 3
admin #ret2syscall	IJCTF 2020	–	files wu 3
easy_right #ret2shellcode #stack-leak	UMDCTF 2020	–	files wu 3
roppity #ret2libc #rop #automatic-exploit-generation	CSAW 2020 Quals	59.00	files wu 3
climb #ret2libc	HackPack 2020	–	files wu 3
pwnagotchi #ret2libc	HSCTF 2020	–	files wu 3
return-to-what #ret2libc	DownUnderCTF 2020	24.44	files wu 3
Combo_Chain #ret2libc	HSCTF 2019	–	files wu 3
Storytime #ret2libc	HSCTF 2019	–	files wu 3
slithery #python-sandbox-escape #blacklist-bypass #module-attribute-reset	CSAW 2020 Quals	59.00	files wu 3
Censorship_Lite #pyjail-escape	AmateursCTF 2023	24.54	files wu 3
lucky #prng-seed-overwrite #rand-prediction #buffer-overflow	Defcamp 2018 Quals	18.75	files wu 3
iz_heap_lv2 #poison-null-byte	ISITDTU 2019 Quals	23.38	files wu 3
tcalc #overlapping-chunks	Hack.lu 2019	68.75	files wu 3
return-to-whats-revenge #orw	DownUnderCTF 2020	24.44	files wu 3
grid #oob-index-write #return-address-overwrite	CSAW 2020 Quals	59.00	files wu 3
SPlaid_Birch #oob-index #splay-tree #heap	PlaidCTF 2019	95.72	files wu 3