CVE-2026-2143 HIGH

CVE-2026-2143: D-Link DIR-823X DDNS Service set_ddns os command injection

Vendor D-Link
Product DIR-823X
Weakness CWE-78
Published February 8, 2026
Last update February 23, 2026
View on NVD All CVEs

CVSS base score

8.6/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

A security vulnerability has been detected in D-Link DIR-823X 250416. This issue affects some unknown processing of the file /goform/set_ddns of the component DDNS Service. The manipulation of the argument ddnsType/ddnsDomainName/ddnsUserName/ddnsPwd leads to os command injection. The attack is possible to be carried out remotely. The exploit has been disclosed publicly and may be used.

Key dates

02Disclosure timeline

February 8, 2026 CVE published
February 23, 2026 Record updated