CVE-2025-10401 D-Link DIR-823x diag_ping command injection

Medium 5.3 Published 14 Sep 2025 Updated 15 Sep 2025

Remote attackers can execute arbitrary commands on D-Link DIR-823x routers via the diag_ping interface, requiring immediate attention from network administrators.

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

What is CVE-2025-10401?

CVE-2025-10401 is a medium-severity command injection vulnerability in D-Link DIR-823x, published on 14 Sep 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability was detected in D-Link DIR-823x up to 250416. The affected element is an unknown function of the file /goform/diag_ping. Performing manipulation of the argument target_addr results in command injection. Remote exploitation of the attack is possible. The exploit is now public and may be used.

Weakness: CWE-77, CWE-74

Which versions are affected by CVE-2025-10401?

It affects 1 product.

Products include Dlink Dir-823x Firmware.

How do I fix CVE-2025-10401?

No fix has been published for CVE-2025-10401 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-2025-10401 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-10401 exists.

Sources

Also known as GHSA-w9hr-5jf6-whgw.