CVE-2026-2142: D-Link DIR-823X set_qos sub_420688 os command injection

Published Feb 8, 2026
·
Updated

A weakness has been identified in D-Link DIR-823X 250416. This vulnerability affects the function sub420688 of the file /goform/setqos. Executing a manipulation can lead to os command injection. The attack can be executed remotely. The exploit has been made available to the public and could be used for attacks.

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·08:02 AM
Data Sourced
via MITRE·08:02 AM
DescriptionSeverityWeakness
Data Sourced
via NVD·08:15 AM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2026-2142?

CVE-2026-2142 is considered a high-severity vulnerability due to the potential for remote exploitation.

2

How do I fix CVE-2026-2142?

To mitigate CVE-2026-2142, it is recommended to update the D-Link DIR-823X to the latest firmware provided by the vendor.

3

What type of vulnerability is CVE-2026-2142?

CVE-2026-2142 is categorized as an OS command injection vulnerability.

4

Can CVE-2026-2142 be exploited remotely?

Yes, CVE-2026-2142 can be exploited remotely, allowing attackers to execute commands on the affected system.

5

Which products are affected by CVE-2026-2142?

CVE-2026-2142 specifically affects the D-Link DIR-823X router.

Contact

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