Who else is affected?
Firmware for such devices is often shared among multiple related products, including those from other vendors, because chipset makers generally provide reference designs and code libraries for the purchasers to brand with their product logos and other user interface customizations. This was seen last year when a broad swath of Netgear home routers were found vulnerable to a common set of vulnerabilities, as cited in the story.
Searching the CVE database for the similar JGS524PE, one finds four 2020 vulnerabilities shared by the JGS516PE, JGS524PE, JGS524Ev2, and GS116Ev2. Someone having any of these four sibling devices should press Netgear for answers.