most of the routers are patched by ISPs directly. also: they are usually not x86 architecture - so not all exploits are possible.

Never seen an ISP patch a router. Ever.

MIPS and Arm have no security issues ever so never need patching which is an x86 only thing? Or maybe this comment is no more relevant than pointing out not all Arm patches apply to x86?

LLMs are giving script kids nation state level tools and expertise.