Support Announcements
(Non-US) DIR-846 :: H/W Rev. Ax :: F/W v100.26 :: LAN-side Authenticated Command Injection in HNAP1/control/SetMasterWLanSettings.php


On January 15, 2021, a 3rd party security researcher submitted a report accusing the (Non-US) DIR-846 using firmware v100.26 of a LAN-side authenticated command injection vulnerability. The vulnerability exploits the HNAP1/control/SetMasterWLanSettings.php in the device's web configuration but requires the malicious user to log in to the web configuration interface LAN side of the device.
The issue is still under investigation as of 04/12/2021. The latest information is below.

3rd Party Report information


          - Report provided: Shizhi He, Wuhan University :: ufohacker _at_ protonmail _dot_ com

          - Reference :

                NIST Disclosure :

                MITRE Disclosure:



Affected Models


Model Hardware Revision Affected FW Fixed FW Recommendation  Last Updated
DIR-846 All Ax Hardware Revisions v100.26 & Below Under Investigation Please check back frequeently 04/12/2021


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.