CVE-2026-2061 D-Link DIR-823X set_ipv6 sub_424D20 os command injection

Medium 5.1 Published 6 Feb 2026 Updated 23 Feb 2026

Remote attackers can execute arbitrary OS commands on D-Link DIR-823X routers via the set_ipv6 endpoint.

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

What is CVE-2026-2061?

CVE-2026-2061 is a medium-severity command injection vulnerability in D-Link DIR-823X, published on 6 Feb 2026. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

A vulnerability was determined in D-Link DIR-823X 250416. Affected by this issue is the function sub_424D20 of the file /goform/set_ipv6. Executing a manipulation can lead to os command injection. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized.

Weakness: CWE-78, CWE-77

Which versions are affected by CVE-2026-2061?

It affects 1 product.

Products include Dlink Dir-823x Firmware.

How do I fix CVE-2026-2061?

No fix has been published for CVE-2026-2061 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-2026-2061 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-2061 exists.

Sources

Also known as GHSA-q8w6-j65f-cxr6.