CVE-2026-2210: D-Link DIR-823X Firmware

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

A vulnerability has been found in D-Link DIR-823X 250416. This affects the function sub_4211C8 of the file /goform/set_filtering. Such manipulation leads to os command injection. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.

Affected products

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

Published 2026-02-09. Last modified 2026-06-17.