Support Announcements
(non-US) DVA-6800z :: Rev. Ax :: F/W vWI_20210604 :: Hard-Coded Credentials


On February 7, 2021, a 3rd party security research submitted a report accusing the DSL-6800z F/W DVA-6800z_A1_WI_20210604 deployed with WIND 3 Service Provider in Italy of having a hard-coded credential vulnerability. This vulnerability was confirmed and a patch was issued too close the reported issues.  Please find the beta/hotfix release below.

3rd Party Report information


          - Report provided:

                    Maurizio Siddu :: maurizio _dot_ siddu _at_ yoroi _dot_ company

          - Reference :

                   3rd Party Public Disclosure :: CVE-2021-27372 :: LINK


              This vulnerability exists in Realtek xPON RTL9601D SDK 1.9 stores passwords in plaintext which may allow attackers to possibly gain access to the device with root permissions via the build-in network monitoring tool and execute arbitrary commands.


 Affected Models


Model Hardware Revision Affected FW Fixed FW Recommendation  Last Updated
DVA-6800z All Ax Hardware Revisions DVA-6800z_A1_WI_20210604 & Below DVA-6800z_A1_WI_20210623

     Please Download Hotfix and Update our device driver



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.