Support Announcements
(non-US) DIR-816 :: Rev. Ax :: F/W v1.01CNB04 :: CNVD-C-2021-222463 :: Command injection


On August 31, 2021, a 3rd party security research team accused the (non-US) DIR-816 of a command injection vulnerability. This vulnerability was confirmed and a patch was issued too close the reported issue.  Please find the beta/hotfix release below.

3rd Party Report information


          - Report provided:
 :: vreport _at_ cert _dot_ org _dot_ cn :: tel: 010-82991537

          - Reference :(Link to Public Disclosure will be updated at later time)


                Exploit 1: HTTP  request  parameter  is  used  in  the  handler  function  of  /goform/form2userconfig.cgi  route,  which can  construct the user  name string to delete the user  function. This can lead  to command injection through shell metacharacters. This exploit may be used to escalated attack vector and compromise device.


 Affected Models


Model Hardware Revision Affected FW Fixed FW Recommendation  Last Updated
(non-US) DIR-816 All Ax Hardware Revisions v1.01CNB04 Beta & Below v1.11CNB02 Hotfix

  Please Download Patch and Update Device



Regarding Security patch for your D-Link Devices
Firmware updates address the security vulnerabilities in affected D-Link devices. D-Link will update this continually and we strongly recommend all users to install the relevant updates.
Please note that this is a device beta software, beta firmware, or hot-fix release which is still undergoing final testing before its official release. The beta software, beta firmware, or hot-fix is provided on an “as is” and “as available” basis and the user assumes all risk and liability for use thereof. D-Link does not provide any warranties, whether express or implied, as to the suitability or usability of the beta firmware. D-Link will not be liable for any loss, whether such loss is direct, indirect, special or consequential, suffered by any party as a result of their use of the beta firmware.
As there are different hardware revisions on our products, please check this on your device before downloading the correct corresponding firmware update. The hardware revision information can usually be found on the product label on the underside of the product next to the serial number. Alternatively, they can also be found on the device web configuration.