CVE-2021-20590
Improper authentication vulnerability in GOT2000 series GT27 model all versions, GOT2000 series GT25 model all versions, GOT2000 series GT21 model GT2107-WTBD all versions ,GOT2000 series GT21 model GT2107-WTSD all versions, GOT SIMPLE series GS21 model GS2110-WTBD-N all versions and GOT SIMPLE series GS21 model GS2107-WTBD-N all versions allows a remote unauthenticated attacker to gain unauthorized access via specially crafted packets when the "VNC server" function is used.
Source: CVE-2021-20590