Vulnerability · Published Mar 17, 2025 · Assigned by VulDB

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

High 7.3

In plain English

A high-severity security flaw in DIR-823G from D-Link. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 15.4% (higher than 97% of all known vulnerabilities).

Severity (CVSS 3.1)7.3High

Exploit odds (30 days)15.4%top 3.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

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.

Affected products (as reported)

Vendor	Product	Versions
D-Link	DIR-823G	1.0.2B05_20181207

Weakness: CWE-285, CWE-266 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

References

VDB-299826 | D-Link DIR-823G DDNS Service HNAP1 SetDDNSSettings improper authorization vdb-entry, technical-description
VDB-299826 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
Submit #513750 | D-Link DIR-823G V1.0.2B05_20181207 Improper Access Controls third-party-advisory
https://lavender-bicycle-a5a.notion.site/D-Link-DIR-823G-SetDDNSSettings-1ac53a41781f80d98649dd3cbe106e9b?pvs=4 exploit
https://www.dlink.com/ product