“It’s unfortunate, but each camera will need to be updated manually by users,” So most people aren't going to bother unless they get an alarming email from the

“It’s unfortunate, but each camera will need to be updated manually by users,” So most people aren't going to bother unless they get an alarming email from the manufacturer (assuming they even have a list of customer email addresses). Although these appear to be DVR systems for commercial use so it's more likely that a business would have a service contract with someone to manage these things. The service vendor would probably be more inclined to patch the thing than the business owner would.