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@GossiTheDog@cyberplace.social The wild part is that this exploit was introduced in a firmware update in 2021, with seemingly no actual usecase other than to be exploited?

https://github.com/PretendoNetwork/SSSL/

"As of 5.5.5, CA's crafted in a specific way may take a newly introduced alternate path for verification. This allows for a CA's signature to not be verified correctly. Instead, the Wii U simply checks if the CA matches one already known by the system, but not the signature or contents of the CA. We have no idea why this change was made, as it does not benefit Nintendo at all. It almost feels intentional."