In addition to what my sibling comment said, > where they have full control over the machine code of the client, Part of the state of modern anti-cheat is dev

In addition to what my sibling comment said, > where they have full control over the machine code of the client, Part of the state of modern anti-cheat is developers taking extreme measures to fight exactly this. Developers don’t just throw their hands up in the air and say it’s unfixable. The softwares I mention run as kernel modules, hook into all sorts of parts of your system, and sometimes even stream new mitigations to be executed as the game is running. That’s why an RCE in this software would be extremely bad.