I think at this point it's pretty safe to assume that all of the well-known network hardware is compromised.
You don't have to bow in order to be compromised. You can be compromised without even knowing it.
There is a big difference between an exploit affecting all devices vs a subset which requires a specific not-best-practice configuration. Regardless, still good to be aware they exist.
The majority (I'd say all) of the Eastern-European countries that are also NATO members do in fact bow to the US, and thus to the NSA/FBI/the Secret Service.