Support Announcements
(Non-US) DIR-825 :: H/W Rev Rx :: F/W v1.33.0.44ebdd4-embedded1.33.0.44ebdd4-embedded :: Buffer Overflow Vulnerability



On September 2, 2022,  3rd party security researcher from the Art Resilla reported the D-Link (Non-US) DIR-825 hardware revision Rx with firmware version v1.33.0.44ebdd4-embedded as having an buffer overflow vulnerability.  


As soon as D-Link was made aware of the reported security issues, we had 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  


         - Discovered by  Art Resilia:: Link

             - Pedro Tavares :: ptavares _at_ artresilia _dot_ com 

             - Hugo Trovão :: htrovao _at_ artresilia _dot_ com 


         The D-Link DIR-825 Rev. Rx router contains a buffer overflow vulnerability in the method "GetConfig" from jsonrpc service under the /CPE endpoint crashes after receiving the well-aligned payload. This crash is associated with the deuteron service also running on the server-side.


Affected Models


Model Hardware Revision  Region Affected FW Fixed FW Recommendation  Last Updated
DIR-825 All R Hardware Revisions Non-US v1.33.0.44ebdd4-embedded & Below v4.0.3_Beta Hotfix
Upgrade to Hofix 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.