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Security Announcement
Announcement > SAP10357
(Non-US) DSL-2730U & (Non-US) DSL-2750U :: Rev. Ax :; Improper Access Control via Hardware Exploit
Publication ID: SAP10357
Resolved Status: Yes
Published on: 10 October 2023 11:08 GMT
Last updated on: 1 February 2024 1:55 GMT


 On September 21, 2023, a 3rd Party security researchers from CoE-CNDS Lab, VJTI, Mumbai, India brought a security report to our attention.  These disclosure reports are for the DSL-2730U and DSL-2750U. The vulnerability reported found the UART/Serial interface on their PCB, which consists of 4 pins . It provides log output and a root terminal without proper access control.


Please get in touch with your regional office for recommendations.


3rd Party Report information

    - Report provided:

                         - CoE-CNDS Lab, VJTI, Mumbai, India

                                - Sushant Mane

                                - Amey Chavekar

                                - Dr. Faruk Kazi


Affected Models



Hardware Revision

End of Service Life

Fixed Firmware


Last Updated



All A Revisions


 Not Available

Retire and Replace




All A Revisions


Not Available

Retire and Replace



Recommendation for End-of-Support/End-of-Life Products

From time to time, D-Link will decide that some of its products have reached End of Support ("EOS") / End of Life (“EOL”). D-Link may choose to EOS/EOL an effect due to the evolution of technology, market demands, innovations, and product efficiencies based on new technologies, or the product matures over time and should be replaced by functionally superior technology.


For US Consumer  

If a product has reached End of Support ("EOS") / End of Life ("EOL"), there is usually no further extended support or development for it.

Typically, for these products, D-Link will be unable to resolve device or firmware issues since all development and customer support has ceased. 


D-Link US is prohibited from supporting these EOL/EOS products; if you are outside the US, please get in touch with your regional D-Link office. If your device was provided by a licensed carrier (service provider) and firmware, o get in touch with don’t hesitate to contact your carrier (service provider). Many devices on this list have available 3rd party open-firmware, D-Link does not support open-firmware, which voids any warranty and is solely the responsibility of the device's owner.


D-Link strongly recommends that this product be retired and cautions that any further use of this product may be a risk to devices connected to it. If US consumers continue to use these devices against D-Link's recommendation, please make sure the device has the last know firmware which can be located on the Legacy Website links above. Please make sure you frequently update the device's unique password to access its web-configuration, and always have WIFI encryption enabled with a unique password.