If we poke around with various sizes/contents of the buffer that we send, we can conclude that we can indeed control EIP. (Yes, EIP, since web is a 32-bit app 😂).
However, given that the address space of web has nothing that matches up with ASCII-based number/. addressing, I'm curious what these "sophisticated means" being used ITW are. Maybe something data-based? 🤔
Also LOL at Ivanti's:
it was evaluated and determined not to be exploitable