How severe is CVE-2021-20590?

This vulnerability has a severity rating of HIGH with a CVSS score of 7.5 out of 10.

What type of vulnerability is CVE-2021-20590?

This is classified as CWE-287, which is a common weakness in software security.

CVE-2021-20590 - HIGH Severity | CVSS 7.5

Vulnerability Description

Improper authentication vulnerability in GOT2000 series GT27 model VNC server versions 01.39.010 and prior, GOT2000 series GT25 model VNC server versions 01.39.010 and prior, GOT2000 series GT21 model GT2107-WTBD VNC server versions 01.40.000 and prior, GOT2000 series GT21 model GT2107-WTSD VNC server versions 01.40.000 and prior, GOT SIMPLE series GS21 model GS2110-WTBD-N VNC server versions 01.40.000 and prior and GOT SIMPLE series GS21 model GS2107-WTBD-N VNC server versions 01.40.000 and prior allows a remote unauthenticated attacker to gain unauthorized access via specially crafted packets when the "VNC server" function is used.

Related Vulnerabilities

CVE-2002-2438

HIGH

CVSS:7.5(High)

TCP firewalls could be circumvented by sending a SYN Packets with other flags (like e.g. RST flag) set, which was not correctly discarded by the Linux TCP stack after firewalling.

CWE-2872002

CVE-2009-0130

HIGH

CVSS:7.5(High)

lib/crypto/c_src/crypto_drv.c in erlang does not properly check the return value from the OpenSSL DSA_do_verify function, which might allow remote attackers to bypass validation of the certificate cha...

CWE-2872009

CVE-2011-2054

HIGH

CVSS:7.5(High)

A vulnerability in the Cisco ASA that could allow a remote attacker to successfully authenticate using the Cisco AnyConnect VPN client if the Secondary Authentication type is LDAP and the password is ...

CWE-2872011

CVE-2012-3824

HIGH

CVSS:7.5(High)

In Arial Campaign Enterprise before 11.0.551, multiple pages are accessible without authentication or authorization.

CWE-2872012

CVE-2013-1391

HIGH

CVSS:7.5(High)

Authentication bypass vulnerability in the the web interface in Hunt CCTV, Capture CCTV, Hachi CCTV, NoVus CCTV, and Well-Vision Inc DVR systems allows a remote attacker to retrieve the device configu...

CWE-2872013

CVE-2013-2569

HIGH

CVSS:7.5(High)

A Security Bypass vulnerability exists in Zavio IP Cameras through 1.6.3 because the RTSP protocol authentication is disabled by default, which could let a malicious user obtain unauthorized access to...

CWE-2872013