Provide references for CVE-2021-41506.
Where can I find more information about CVE-2021-41506?
References are available at: https://habr.com/en/post/486856/, https://www.xiongmaitech.com/en/index.php/news/info/12/68, https://github.com/Snawoot/hisilicon-dvr-telnet, https://github.com/tothi/hs-dvr-telnet.