CVE-2021-44827: Improper Neutralization of Special Elements used in an OS Command

There is remote authenticated OS command injection on TP-Link Archer C20i 0.9.1 3.2 v003a.0 Build 170221 Rel.55462n devices vie the XTPExternalIPv6Address HTTP parameter, allowing a remote attacker to run arbitrary commands on the router with root privileges...