For those who don’t want to read the linked article above, here is a summary:
A security flaw was found in Belkin Wemo Mini Smart Plug V2, and the manufacturer says this product "is at the end of its life and will not be patched.” Their current model is Version 4, which does not have the issue. The article suggests several workarounds but concludes, “If those steps don’t fully resolve concerns or you’re not quite sure how to execute them, the safest option is to stop using the Wemo Mini Smart Plug V2.”
Lot of security issues with Wemo.
Sounds like they never fully fixed the buffer overrun issues first discovered in 2018.