I'm a guy who is into reverse engineering and networking a lot. I'm a bit known in the Call of Duty modding scene for emulating DemonWare (the backend master server used in every recent CoD title) and basically modifying the game's core by giving it extra features that were not planned in the game.
Anyway, I know of a remote code execution exploit that is existent in every single CoD title, and was patched by Activision a few years back. The Vita version, however, seems to be unpatched. With a little bit of DemonWare emulation on the Vita by changing the DNS address and running the emulator on my computer, I was able to send a command to the client (Vita running CoD) and the RCE was "successful" (I didn't actually execute any CPU instructions, I just filled the buffer with random stuff and it crashed, but I know this is a RCE since it's the same one that was also present in the PC version).
Now here's the thing: Since I'm a newbie when it comes to Vita modding and whatnot, I'm not sure if this exploit will be useful for hackers to attack the latest Vita 3.67 firmware. So that is exactly my question, if I shared the exploit, would it even be useful for hackers? If it is, let me know who the right people are for me to send them everything they need to know about this.