CVE-2026-2084: D-Link DIR-823X Firmware

High severity, CVSS 7.2. EPSS: 4.6% chance of exploitation in the next 30 days.

A weakness has been identified in D-Link DIR-823X 250416. This impacts an unknown function of the file /goform/set_language. Executing a manipulation of the argument langSelection can lead to os command injection. It is possible to launch the attack remotely. The exploit has been made available to the public and could be used for attacks.

Affected products

• D-Link DIR-823X Firmware: version 250416 only

Published 2026-02-07. Last modified 2026-06-17.