Provide references for CVE-2021-23242.
Where can I find more information about CVE-2021-23242?
References are available at: https://www.mercusys.com/en/, https://www.mercurycom.com.cn/product-521-1.html, https://github.com/BATTZION/MY_REQUEST/blob/master/Mercury%20Router%20Upnp%20Server%20Directory%20Traversal.md.