High severity7.2NVD Advisory· Published Feb 8, 2026· Updated Jun 17, 2026

CVE-2026-2143

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Dlink/DIR-823xllm-create2 versions
250416+ 1 more
- (no CPE)range: 250416
- (no CPE)range: 250416
Dlink/Dir 823x Firmware
cpe:2.3:o:dlink:dir-823x_firmware:250416:*:*:*:*:*:*:*

Patches

Vulnerability mechanics

References

github.com/master-abc/cve/issues/25nvdExploitIssue Tracking
vuldb.comnvdThird Party AdvisoryVDB Entry
vuldb.comnvdThird Party AdvisoryVDB Entry
vuldb.comnvdPermissions RequiredVDB Entry
www.dlink.comnvdProduct

News mentions

No linked articles in our index yet.

Severity

HighCVSS v3.1

7.2/ 10

CVSS v47.3

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack vector: Network
Complexity: Low
Privileges: High
User interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: High

Vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS

Probability of exploitation in the next 30 days.

4.32%

VYPR risk score

Composite of severity, exploitation, and reach.

0.47medium

cvss	0.468
epss	0.003
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000

Weaknesses

CWE-77
Improper Neutralization of Special Elements used in a Command ('Command Injection')
CWE-78
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

CVE ID

CVE-2026-2143

Credits

J(
jiefengliang (VulDB User)
reporter