DAP-2622 DDP Change ID Password Auth Password Stack-Based Buffer Overflow Remote Code Execution Vulnerability

20 June, 2023



On June 5, 2023, 3rd party security research from TrendMicro ZDI reported the D-Link DAP-2622 hardware revision Ax with firmware version v1.00 as having a boundary error in the device's DDP service. This vulnerability can be exploited to cause a stack-based buffer overflow and subsequently execute arbitrary code on the device.  

As soon as D-Link was made aware of the reported security issues, we promptly started our investigation and began developing security patches.


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.


Report information  


        - Reported by TrendMicro ZDI


              - ZDI-CAN-20061: D-Link DAP-2622 DDP Change ID Password Auth Password Stack-based Buffer Overflow Remote Code Execution Vulnerability


Affected Models


Model Hardware Revision Region Affected FW Fixed FW Recommendation Last Updated
DAP-2622 Ax Worldwide v1.00 & below v1.10B03 Beta Hot-Fix
Upgrade to hot-fix patch


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.