CVE-2025-2359 D-Link DIR-823G DDNS Service HNAP1 SetDDNSSettings improper authorization

Medium 6.9 Published Updated

Remote attackers can bypass authorization in the DDNS service to modify settings on unsupported D-Link DIR-823G routers.

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-2025-2359?

CVE-2025-2359 is a medium-severity missing authorization vulnerability in Dlink Dir-823g Firmware, published on 17 Mar 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability classified as critical has been found in D-Link DIR-823G 1.0.2B05_20181207. Affected is the function SetDDNSSettings of the file /HNAP1/ of the component DDNS Service. The manipulation of the argument SOAPAction leads to improper authorization. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

Weakness: CWE-285, CWE-266

Which versions are affected by CVE-2025-2359?

It affects 1 product.

Products include Dlink Dir-823g Firmware.

How do I fix CVE-2025-2359?

No fix has been published for CVE-2025-2359 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2025-2359 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-2359 exists.

All Dlink Dir-823g Firmware vulnerabilities

Sources

Also known as GHSA-qvh6-jh7v-8fmr.

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