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CVE-2026-2143

D-Link DIR-823X DDNS Service set_ddns os command injection

HIGH
7.2
CVSS Score
Published: February 8, 2026 at 08:32 AM UTC
Updated: June 17, 2026 at 10:30 AM UTC
2 products affected across 1 vendorDir 823X AX3000 FirmwareDIR-823X

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Severity
HIGH7.2
Exploit prediction
EPSS 5%
SSVC
PoC

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (5)

VDB EntryTechnical DescriptionThird Party Advisory
Source: cverecord
https://vuldb.com/?id.344778
SignaturePermissions RequiredVDB Entry
Source: cverecord
https://vuldb.com/?ctiid.344778
Third Party AdvisoryVDB Entry
Source: cverecord
https://vuldb.com/?submit.747492
ExploitIssue Tracking
Source: cverecord
https://github.com/master-abc/cve/issues/25
Product
Source: cverecord
https://www.dlink.com/

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.2HIGHVulDB
Vector?

Quick Info

StatusANALYZED
CWE
CWE-78CWE-77

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