CVE-2026-2120: D-Link DIR-823X Firmware

High severity, CVSS 7.2. EPSS: 4.7% chance of exploitation in the next 30 days.

A vulnerability was identified in D-Link DIR-823X 250416. This affects an unknown function of the file /goform/set_server_settings of the component Configuration Parameter Handler. The manipulation of the argument terminal_addr/server_ip/server_port leads to os command injection. The attack may be initiated remotely. The exploit is publicly available and might be used.

Affected products

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

Published 2026-02-08. Last modified 2026-06-17.