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CVE-2021-20592

Published: Aug 5, 2021Updated: Nov 21, 2024 Sources: CVE List NVD csafCWE-662
NVD MITRE
7.5CVSSHIGH
EPSS Score
1.5%
Top 29.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Missing synchronization vulnerability in GOT2000 series GT27 model communication driver versions 01.19.000 through 01.39.010, GT25 model communication driver versions 01.19.000 through 01.39.010 and GT23 model communication driver versions 01.19.000 through 01.39.010 and GT SoftGOT2000 versions 1.170C through 1.256S allows a remote unauthenticated attacker to cause DoS condition on the MODBUS/TCP slave communication function of the products by rapidly and repeatedly connecting and disconnecting to and from the MODBUS/TCP communication port on a target. Restart or reset is required to recover.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
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:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-662

Affected Products

gt softgot2000mitsubishielectricICS / OT / IoT
got2000 gt27 firmwaremitsubishielectricICS / OT / IoT
got2000 gt25 firmwaremitsubishielectricICS / OT / IoT
got2000 gt23 firmwaremitsubishielectricICS / OT / IoT
GOT2000 series GT27 model; GT25 model; GT23 model; GT SoftGOT2000n/a
mitsubishielectriccommercialJPICS / OT / IoTaka mitsubishi electric

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

1 technique
Privilege Escalation
View detailed technique mapping

References

https://jvn.jp/vu/JVNVU92414172/index.html
jvn.jp
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-007_en.pdf
mitsubishielectric.com
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2021/icsa-21-208-02.json
raw.githubusercontent.com
and 6 more references View all →

Timeline

Published
Aug 5, 2021
Last Updated
Nov 21, 2024

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