CVE-2026-2120: D-Link DIR-823X Configuration Parameter set_server_settings os command injection

Published Feb 8, 2026
·
Updated

A vulnerability was identified in D-Link DIR-823X 250416. This affects an unknown function of the file /goform/setserversettings of the component Configuration Parameter Handler. The manipulation of the argument terminaladdr/serverip/serverport leads to os command injection. The attack may be initiated remotely. The exploit is publicly available and might be used.

Affected Software

3 affected components
D-Link DIR-823X
All of the following
Dlink Dir-823x Firmware=250416
Dlink Dir-823x

Event History

Feb 8, 2026
CVE Published
via MITRE·12:32 AM
Data Sourced
via MITRE·12:32 AM
DescriptionSeverityWeakness
Data Sourced
via NVD·01:16 AM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2026-2120?

CVE-2026-2120 is classified as a high-severity vulnerability due to the potential for remote command execution.

2

How do I fix CVE-2026-2120?

To fix CVE-2026-2120, users should update the D-Link DIR-823X firmware to the latest version released by D-Link.

3

What are the potential impacts of CVE-2026-2120?

If exploited, CVE-2026-2120 could allow an attacker to execute arbitrary commands on the affected system.

4

Which products are affected by CVE-2026-2120?

CVE-2026-2120 specifically affects the D-Link DIR-823X router.

5

How can I determine if my device is vulnerable to CVE-2026-2120?

Users can check the firmware version of their D-Link DIR-823X and compare it against the latest available version from D-Link to determine vulnerability.

Contact

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