Thanks to our automatic and regular software updates as well as a number of other security measures built into our devices and software, we are confident that our customers were not affected by the VPNFilter vulnerability.
This protection is built into eero and doesn't require any new firmware or the addition of eero Plus. For this reason, there is no need to reset your eero system.
For more information, please visit the eero blog: https://blog.eero.com/eero-designed-keep-network-safe-secure/
For more information on this threat, as well as a list of known affected devices, you can visit this article.