CVE-2021-20694
Improper access control vulnerability in DAP-1880AC firmware version 1.21 and earlier allows a remote authenticated attacker to bypass access restriction and to start a telnet service via unspecified vectors.
Date published : 2021-04-25
https://jvn.jp/en/vu/JVNVU92898656/index.html
https://www.dlink-jp.com/support/release/jvnvu92898656_dap-1880ac.html