Perfectly illustrating why consumers and small businesses should consider upgrading their consumer-grade router, the Home Router Security Report 2020 by the Fraunhofer Institute for Communication, Information Processing and Ergonomics found that all the 127 models of home routers tested had security flaws, some of them severe.
The report detailed how some of these routers had hundreds of known vulnerabilities, yet of the routers tested, 46 had not received a security update in the prior 12 months. The most extreme case found that some routers had not received a security update in the past 5 years.
Above all, the report highlights what little importance that the manufacturers of these devices place on security. In many cases, the default security settings are weak and the ability to install updates for vulnerabilities, even assuming that there were available, are missing. Ease of use was given greater importance than fundamental security, which is always a recipe for disaster.
If you care about the security of your home and small business, you need to install, configure and manage a commercial-grade router/firewall. The capabilities and approach to security of these devices, far outstrips anything that is available in the consumer market.
Fortunately pfSense® firewall software, supported by the Netgate brand of firewall hardware, makes this a relatively inexpensive upgrade. The book, Safer @ Home with pfSense® details how to go about setting up pfSense® to address your home or small business security and privacy needs.