CVE-2021-39510 : faille critique dlink dir-816 firmware (CVSS 9.8)

An issue was discovered in D-Link DIR816_A1_FW101CNB04 750m11ac wireless router, The HTTP request parameter is used in the handler function of /goform/form2userconfig.cgi route, which can construct the user name string to delete the user function. This can lead to command injection through shell metacharacters.

Sévérité

Critique (CVSS 9.8)

Vecteur CVSS

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

Exploitation active

Non signalée par la CISA

Publication

24 août 2021

Dernière mise à jour

17 juin 2026

• dlink dir-816 firmware

• Fiche CVE-2021-39510 sur le NVD (NIST)
• github.com/doudoudedi/main-DIR-816_A1_Command-injection
• github.com/doudoudedi/main…
• dlink.com/en/security-bulletin/