Support Announcements
DIR-866L :: HW Rev. Ax :: FW :: 1.03B04 or Older :: CVE-2019-17663 ::XSS Security Vulnerability


Cybersecurity company Fortinet recently disclosed a vulnerability in D-Link’s DIR-866L that could allow a malicious user to access the devices. D-Link is aware of the reported security issue and investigated immediately.


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.




- Thanh Nguyen: nguyent _at_ fortinet _dot_ com ::

-  CVE-2019-17663 ::


Affected Products


The following D-Link model's, sold in the United States, unless otherwise noted were reported in this 3rd party disclosure.


     - DIR-866L  Hardware Revision Ax   Firmware 1.03b04 and below (older)




While D-Link is aware of the alleged vulnerabilities involving the DIR-866L this products have reached End of Life(EoL)/End of Support(EoS) and there is no longer support or development for them. Once a product is past EoL/EoS date, which states on it's product support page or has been transferred to,


D-Link will be unable to resolve Device or Firmware issues since all development and customer support has ceased.

From time to time, D-Link will decide that certain of its products have reached EoL. D-Link may choose to EoL a product for many reasons, including shift in market demands, technology innovation, costs or efficiencies based on new technologies, or the product simply matures over time and is replaced by functionally superior technology.


Once a product is identified as EoL, D-Link will provide the dates for which the support and service for that product will no longer be available.


D-Link recommends this product be retired, any further use maybe a risk to devices connected to it and end-users connected to it.


While this is an established part of a product’s overall life cycle, D-Link understands that EOL of a product may affect an end-user’s decision to continue to use the product. The chart in the link below outlines D-Link's EOL Policy to help customers better manage their end-of-life transition and to help D-Link better understand its role in helping our customers migrate to alternative D-Link products and technology.


 D-Link’s End-of-Life Policy can be found here: