Wrong bowl used in microwave

Hi Rabbi. By mistake, some dairy-pasta (with cheese) was microwave re-heated in a meat-side bowl made of plastic/rubber. The bowl though was probably never used as kli rishon ‘on fire’ for meat. That microwave is used for ‘dairy’ in general. Am I correct that in this case the microwave does not need koshering? Thank you Rabbi.

Microwave doesn’t need koshering

How about the bowl?

In this case the bowl doesn’t need koshering either.