Support Announcements
DAP-1330 :: Rev. Ax :: FW v1.10B01_Beta & Below :: CVE-2020-8861 :: HNAP Authentication Implementation Vulnerability


On January 3, 2020, Trend Micro's Zero Day Initiative (ZDI) research team submitted a HNAP Authentication Bypass Vulnerability that is  logic flaw in the implementation of the HNAP login algorithm allowing an attacker to bypass authentication and reset the admin password


The DAP-1330 is a LAN-side WiFi-Extender with only access to the LAN (local area network) that it is connected.

3rd Party Report information

          - Report provided chung96vn - Security Researcher of VinCSS (Member of Vingroup) working with Trend Micro ZDI

          - Reference :

            - CVE-2020-8861

            - ZDI-CAN-9554: D-Link DAP-1330 HNAP Incorrect Implementation of Authentication Algorithm Authentication Bypass Vulnerability

            - Web digitalmunition ::



 Affected Models


Model Hardware Revision Affected FW Fixed FW Recommendation  Last Updated
DAP-1330 All Ax Hardware Revisions v1.10B01_Beta & Below v1.13B01_Beta Completed 12/26/2019


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.