Advisory Published

CVE-2021-44880: Command Injection

First published: Fri Feb 04 2022(Updated: )

D-Link devices DIR_878 DIR_878_FW1.30B08_Hotfix_02 and DIR_882 DIR_882_FW1.30B06_Hotfix_02 were discovered to contain a command injection vulnerability in the system function. This vulnerability allows attackers to execute arbitrary commands via a crafted HNAP1 POST request.


Affected SoftwareAffected VersionHow to fix
Dlink Dir-878 Firmware<=1.20b05
Dlink Dir-878 Firmware=1.30b08-hotfix_02_beta
Dlink Dir-878
Dlink Dir-882 Firmware<=1.30b06
Dlink Dir-882 Firmware=1.30b06-hotfix_02_beta
Dlink Dir-882

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Frequently Asked Questions

  • What is CVE-2021-44880?

    CVE-2021-44880 is a command injection vulnerability affecting D-Link devices DIR-878 and DIR-882.

  • What is the severity of CVE-2021-44880?

    CVE-2021-44880 has a severity rating of 9.8, which is considered critical.

  • How does CVE-2021-44880 work?

    CVE-2021-44880 allows attackers to execute arbitrary commands by sending a crafted HNAP1 POST request to the affected D-Link devices.

  • Which D-Link devices are affected by CVE-2021-44880?

    D-Link devices DIR-878 (firmware versions up to 1.30B08_Hotfix_02) and DIR-882 (firmware versions up to 1.30B06_Hotfix_02) are affected by CVE-2021-44880.

  • How can I mitigate CVE-2021-44880?

    To mitigate CVE-2021-44880, it is recommended to update the firmware on the affected D-Link devices to the latest patched version.


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