CVE-2021-20590

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Vulnerabilidad de autenticación inadecuada en el servidor VNC de la serie GOT2000 modelo GT27 versiones 01.39.010 y anteriores, servidor VNC de la serie GOT2000 modelo GT25 versiones 01.39.010 y anteriores, servidor VNC de la serie GOT2000 modelo GT2107-WTBD versiones 01.40.000 y anteriores, servidor VNC de la serie GOT2000 modelo GT2107-WTSD versiones 01.40. 000 y anteriores, el servidor VNC de la serie GOT SIMPLE GS21 modelo GS2110-WTBD-N versiones 01.40.000 y anteriores y el servidor VNC de la serie GOT SIMPLE GS21 modelo GS2107-WTBD-N versiones 01.40.000 y anteriores permite a un atacante remoto no autenticado obtener acceso no autorizado a través de paquetes especialmente diseñados cuando se utiliza la función "servidor VNC".

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-12-17 CVE Reserved
2021-04-22 CVE Published
2024-04-25 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-287: Improper Authentication

CAPEC

References (2)

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

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Mitsubishielectric Search vendor "Mitsubishielectric"	Got2000 Gt27 Firmware Search vendor "Mitsubishielectric" for product "Got2000 Gt27 Firmware"	<= 01.39.010 Search vendor "Mitsubishielectric" for product "Got2000 Gt27 Firmware" and version " <= 01.39.010"	-	Affected	in	Mitsubishielectric Search vendor "Mitsubishielectric"	Got2000 Gt27 Search vendor "Mitsubishielectric" for product "Got2000 Gt27"	-	-	Safe
Mitsubishielectric Search vendor "Mitsubishielectric"	Got2000 Gt25 Firmware Search vendor "Mitsubishielectric" for product "Got2000 Gt25 Firmware"	<= 01.39.010 Search vendor "Mitsubishielectric" for product "Got2000 Gt25 Firmware" and version " <= 01.39.010"	-	Affected	in	Mitsubishielectric Search vendor "Mitsubishielectric"	Got2000 Gt25 Search vendor "Mitsubishielectric" for product "Got2000 Gt25"	-	-	Safe
Mitsubishielectric Search vendor "Mitsubishielectric"	Gt2107-wtbd Firmware Search vendor "Mitsubishielectric" for product "Gt2107-wtbd Firmware"	<= 01.40.000 Search vendor "Mitsubishielectric" for product "Gt2107-wtbd Firmware" and version " <= 01.40.000"	-	Affected	in	Mitsubishielectric Search vendor "Mitsubishielectric"	Gt2107-wtbd Search vendor "Mitsubishielectric" for product "Gt2107-wtbd"	-	-	Safe
Mitsubishielectric Search vendor "Mitsubishielectric"	Gt2107-wtsd Firmware Search vendor "Mitsubishielectric" for product "Gt2107-wtsd Firmware"	<= 01.40.000 Search vendor "Mitsubishielectric" for product "Gt2107-wtsd Firmware" and version " <= 01.40.000"	-	Affected	in	Mitsubishielectric Search vendor "Mitsubishielectric"	Gt2107-wtsd Search vendor "Mitsubishielectric" for product "Gt2107-wtsd"	-	-	Safe
Mitsubishielectric Search vendor "Mitsubishielectric"	Gs2110-wtbd-n Firmware Search vendor "Mitsubishielectric" for product "Gs2110-wtbd-n Firmware"	<= 01.40.000 Search vendor "Mitsubishielectric" for product "Gs2110-wtbd-n Firmware" and version " <= 01.40.000"	-	Affected	in	Mitsubishielectric Search vendor "Mitsubishielectric"	Gs2110-wtbd-n Search vendor "Mitsubishielectric" for product "Gs2110-wtbd-n"	-	-	Safe
Mitsubishielectric Search vendor "Mitsubishielectric"	Gs2107-wtbd-n Firmware Search vendor "Mitsubishielectric" for product "Gs2107-wtbd-n Firmware"	<= 01.40.000 Search vendor "Mitsubishielectric" for product "Gs2107-wtbd-n Firmware" and version " <= 01.40.000"	-	Affected	in	Mitsubishielectric Search vendor "Mitsubishielectric"	Gs2107-wtbd-n Search vendor "Mitsubishielectric" for product "Gs2107-wtbd-n"	-	-	Safe