VPNFilter and affected models

Apologies if this has been covered somewhere but if so, I haven't been able to find it. I've seen the list regarding models affected by this malware which includes some of the more popular versions of Netgear's products, like the R8000. What does this mean for those of us who have newer derivations of those models like the R8300, for example? Are we to assume that malware vulerabilities present in one will be present in the entire model family, or is that unlikely?

Thanks for your time.