CVE-2025-10123: D-Link DIR-823X Firmware

Critical severity, CVSS 9.8. EPSS: 4.7% chance of exploitation in the next 30 days.

A vulnerability was determined in D-Link DIR-823X up to 250416. Affected by this vulnerability is the function sub_415028 of the file /goform/set_static_leases. Executing manipulation of the argument Hostname can lead to command injection. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized.

Affected products

• D-Link DIR-823X Firmware: up to and including 250416

Published 2025-09-09. Last modified 2026-06-17.