Date：2021/08/02

【Security Vulnerability Warning】D-Link DIR-3040 device firmware exist multiple security vulnerabilities (CVE-2021-21816~21820), please confirm and update as soon as possible!

Subject:【Security Vulnerability Warning】D-Link DIR-3040 device firmware exist multiple security vulnerabilities (CVE-2021-21816~21820), allowing attackers to obtain administrator rights or execute arbitrary code remotely. Please confirm and update as soon as possible!
Description:
For details, please refer to the following links.

https://www.informationsecurity.com.tw/article/article_detail.aspx?aid=9361

https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10228

https://blog.talosintelligence.com/2021/07/vuln-spotlight-d-link.html

https://www.twcert.org.tw/tw/cp-104-4945-a841f-1.html

Network System Division
Computer and Communication Center