Vulnerability · Published Apr 22, 2021 · Assigned by Mitsubishi

CVE-2021-20590

High 7.5

In plain English

A high-severity security flaw in GOT SIMPLE series GS21 model GS2107-WTBD-N. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.3% (higher than 70% of all known vulnerabilities).

Severity (CVSS NVD)7.5High

Exploit odds (30 days)1.3%top 29.9% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
n/a	GOT2000 series GT27 model	VNC server version 01.39.010 and prior
n/a	GOT2000 series GT25 model	VNC server version 01.39.010 and prior
n/a	GOT2000 series GT21 model GT2107-WTBD	VNC server version 01.40.000 and prior
n/a	GOT2000 series GT21 model GT2107-WTSD	VNC server version 01.40.000 and prior
n/a	GOT SIMPLE series GS21 model GS2110-WTBD-N	VNC server version 01.40.000 and prior
n/a	GOT SIMPLE series GS21 model GS2107-WTBD-N	VNC server version 01.40.000 and prior

References

https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-001_en.pdf x_refsource_CONFIRM
https://jvn.jp/vu/JVNVU97615777/index.html x_refsource_CONFIRM