CVE-2026-2142: D-Link DIR-823X Firmware

High severity, CVSS 7.2. EPSS: 6.6% chance of exploitation in the next 30 days.

A weakness has been identified in D-Link DIR-823X 250416. This vulnerability affects the function sub_420688 of the file /goform/set_qos. Executing a manipulation can lead to os command injection. The attack can be executed 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 2026-02-08. Last modified 2026-06-17.