http://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10069
All other Mfrs are just as guilty! Netgear is currently having security issues and has a bad history of it.
Other major router mfrs also use 3rd party internals and chip sets as well. D-Link uses Broadcom and I don't think Broadcom is categorized as "generic." Neither is Qualcom.
I wouldn't say that 30 years in business should be called "zero effort."
D-Link make good solid products.