CVE-2026-1125 D-Link DIR-823X set_wifidog_settings sub_412E7C command injection

Medium 6.9 Published 18 Jan 2026 Updated 23 Feb 2026

Remote attackers can execute arbitrary commands on D-Link DIR-823X routers via the set_wifidog_settings interface.

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-2026-1125?

CVE-2026-1125 is a medium-severity command injection vulnerability in D-Link DIR-823X, published on 18 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A weakness has been identified in D-Link DIR-823X 250416. Affected by this issue is the function sub_412E7C of the file /goform/set_wifidog_settings. Executing a manipulation of the argument wd_enable can lead to command injection. The attack can be executed remotely. The exploit has been made available to the public and could be used for attacks.

Weakness: CWE-77, CWE-74

Which versions are affected by CVE-2026-1125?

It affects 1 product.

Products include Dlink Dir-823x Firmware.

How do I fix CVE-2026-1125?

No fix has been published for CVE-2026-1125 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-2026-1125 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-1125 exists.

Sources

Also known as GHSA-8whh-2x7g-j9cx.