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CVE-2021-20607

Published: Dec 17, 2021Updated: Nov 21, 2024 Sources: CVE List NVD csafCWE-191
NVD MITRE
5.5CVSSMEDIUM
EPSS Score
0.9%
Top 44.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Integer Underflow vulnerability in Mitsubishi Electric GX Works2 versions 1.606G and prior, Mitsubishi Electric MELSOFT Navigator versions 2.84N and prior and Mitsubishi Electric EZSocket versions 5.4 and prior allows an attacker to cause a DoS condition in the software by getting a user to open malicious project file specially crafted by an attacker.

CVSS Vector Breakdown

AV:LAC:LPR:NUI:RS:UC:NI:NA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-191

Affected Products

Mitsubishi Electric GX Works2; Mitsubishi Electric MELSOFT Navigator; Mitsubishi Electric EZSocketn/a
ezsocketmitsubishielectricICS / OT / IoT
gx works2mitsubishielectricICS / OT / IoT
melsoft navigatormitsubishielectricICS / OT / IoT
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
Initial Access
View detailed technique mapping

References

https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-021_en.pdf
mitsubishielectric.com
https://jvn.jp/vu/JVNVU93817405/index.html
jvn.jp
https://us-cert.cisa.gov/ics/advisories/icsa-21-350-05
us-cert.cisa.gov
and 7 more references View all →

Timeline

Published
Dec 17, 2021
Last Updated
Nov 21, 2024

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