AUGUST 5, 2026
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Case File

CVE-2021-20590

HIGH · CVSS 7.5 EPSS 1.27%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-04-22 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.5. It may be remotely exploitable. Exploitation may require the attacker to be authenticated.

CVE
CVE-2021-20590
Severity
HIGH
CVSS
7.5
EPSS
1.27%

Original NVD 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 CVEs

Other vulnerabilities affecting the same vendor(s)