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CVE-2021-20590

Published: Apr 22, 2021Updated: Nov 21, 2024 Sources: CVE List NVD BDU csafCWE-287
NVD MITRE
7.5CVSSHIGH
EPSS Score
1.3%
Top 33.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-287

Affected Products

got2000 gt27 firmwaremitsubishielectricICS / OT / IoT
got2000 gt25 firmwaremitsubishielectricICS / OT / IoT
gt2107-wtbd firmwaremitsubishielectricICS / OT / IoT
gt2107-wtsd firmwaremitsubishielectricICS / OT / IoT
gs2110-wtbd-n firmwaremitsubishielectricICS / OT / IoT
mitsubishielectriccommercialJPICS / OT / IoTaka mitsubishi electric
and 15 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
View detailed technique mapping

References

https://jvn.jp/vu/JVNVU97615777/index.html
jvn.jp
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-001_en.pdf
mitsubishielectric.com
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2021/icsa-21-112-02.json
raw.githubusercontent.com
and 6 more references View all →

Timeline

Published
Apr 22, 2021
Last Updated
Nov 21, 2024

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