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

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 15.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-03-17 · updated 2026-06-17
Weakness: CWE-266

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.

Affected products

D-Link DIR-823G: 1.0.2b05_20181207

References

https://lavender-bicycle-a5a.notion.site/D-Link-DIR-823G-SetDDNSSettings-1ac53a41781f80d98649dd3cbe106e9b?pvs=4
https://vuldb.com/?ctiid.299826
https://vuldb.com/?id.299826
https://vuldb.com/?submit.513750
https://www.dlink.com/

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