I don't think the 830 series is affected, the articles I read only talked about the 840 EVO line. Doesn't mean the 830 series doesn't have its own issues, but the firmware fix that I read about was narrowly targeted to the 840 EVO.

But I haven't been looking at that information for a couple of weeks, so there could be updates, or info I have missed. So if you're concerned then do some googling and see if you can find out anything definitive.