D-Link DSR-150 with firmware before 1.08B44; DSR-150N with firmware before 1.05B64; DSR-250 and DSR-250N with firmware before 1.08B44; and DSR-500, DSR-500N, DSR-1000, and DSR-1000N with firmware before 1.08B77 have a hardcoded account of username gkJ9232xXyruTRmY, which makes it easier for remote attackers to obtain access by leveraging knowledge of the username.
Weaknesses in this category are related to the management of credentials.