Advisory Published

CVE-2021-45382: D-Link Multiple Routers Remote Code Execution Vulnerability

First published: Thu Feb 17 2022(Updated: )

A remote code execution vulnerability exists in all series H/W revisions routers via the DDNS function in ncc2 binary file.

Credit: cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Dlink Dir-820l Firmware
Dlink Dir-820l
D-Link Multiple Routers
Dlink Dir-820lw
Dlink Dir-826l Firmware
D-Link Multiple Routers
D-Link Multiple Routers
Dlink Dir-830l
Dlink Dir-836l Firmware
D-Link Multiple Routers
D-Link Multiple Routers
Dlink Dir-810l

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Frequently Asked Questions

  • What is CVE-2021-45382?

    CVE-2021-45382 is a Remote Code Execution (RCE) vulnerability in multiple D-Link routers.

  • Which D-Link routers are affected by CVE-2021-45382?

    The following D-Link routers are affected by CVE-2021-45382: DIR-810L, DIR-820L/LW, DIR-826L, DIR-830L, and DIR-836L.

  • What is the severity of CVE-2021-45382?

    CVE-2021-45382 has a severity rating of 9.8 (Critical).

  • How does CVE-2021-45382 work?

    CVE-2021-45382 allows remote attackers to execute arbitrary code on the affected D-Link routers through the DDNS function in the ncc2 binary file.

  • How can I fix CVE-2021-45382?

    To fix CVE-2021-45382, it is recommended to update the firmware of the affected D-Link routers to the latest version provided by D-Link.


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