A recent report indicates that the DIR-850L HW. Rev. Ax FW v1.02 & HW Rev. Bx FW v2.06 filed under CVE-2018-9032 have been accused of Authentication Bypass in the LAN-side web-configuration. The reported security issue is currently under investigation by D-Link. D-Link will provide updates as soon as it has more information.
As D-Link investigates, please note these reported security issues are on much older legacy firmware. We recommend always to keep up-to-date firmware which can be found at https://support.dlink.com/ProductInfo.aspx?m=DIR-850L
D-Link takes the issues of network security and user privacy very seriously. We have a dedicated task force and product management team on call to address evolving security issues and implement appropriate security measures. Please check the D-Link website for updates regularly.