CVE-2025-10123 D-Link DIR-823X set_static_leases sub_415028 command injection

Medium 6.9 Published 9 Sep 2025 Updated 9 Sep 2025

Remote attackers can execute arbitrary commands on D-Link DIR-823X routers via the Hostname parameter in the static leases configuration.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2025-10123?

CVE-2025-10123 is a medium-severity command injection vulnerability in D-Link DIR-823X, published on 9 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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.

Weakness: CWE-77, CWE-74

Which versions are affected by CVE-2025-10123?

It affects 1 product.

Products include Dlink Dir-823x Firmware.

How do I fix CVE-2025-10123?

No fix has been published for CVE-2025-10123 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2025-10123 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-10123 exists.

Sources

Also known as GHSA-fwjc-77p8-c4h7.