Newest Post: VoidShell Library: Destiny Notes

Good afternoon, readers. Oh yeah, this is going to be the first blog entry of 2026, so let us begin by talking about the VoidShell library's future. As many of you can guess, this library initially started as an ASM x86 program inside a ST file, which was loaded by the engine through a SuperNull exploit (The StateDef Overflow engine vulnerability was used as main vector back then), and despite you could expect, it was simpler than the current version. "Eikidankai" was the first name given to said library and early build versions were used on a few known characters (such as x00x00x or Void.Schmelze) to withstand most SuperNull enemies from the past decade. However, there was no real defense behind it, as it just seals most of the engine vulnerabilities while hooking some primary functions, causing their exploits to be effectively blocked but also rendering them unstable. They were eventually left as PoC characters while the Eikidankai program had to be reworked from scrat...
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M.U.G.E.N 1.00: ST Filepath - Buffer Overflow Attack

Good evening, friends.
It has been a while since I have not talked about engine vulnerabilities, but I think this is the right time to start talking about this new vulnerability.

This research was born from Nomi's ideas about trying to overflow the ST filepath line in WinMUGEN, which motivated me to investigate said insight in M.U.G.E.N 1.00; and as expected, it is possible to perform a buffer overflow attack from there by creating a very long filepath string that overwrites the character loader's buffer region including the return address, allowing us to execute our ROP chain.

This exploit can be used on both M.U.G.E.N 1.00 and 1.1b, but the main downside is not default-processing reversible, which currently restricts its use to SuperNull:Reloader characters only.

(> Full information about this engine vulnerability can be found here. <)

Sample Picture - Barkiel vs Einherjar

Note:
Due to nature of the ROP exploit technique, do not expect this exploit to work on all the computers, so beware of it.

Well, that is all for today, have a nice day.