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CVE-2020-7477

Published: Mar 23, 2020Updated: May 28, 2026 Sources: CVE List NVDCWE-754
NVD MITRE
7.5CVSSHIGH
EPSS Score
1.3%
Top 33.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in Quantum Ethernet Network module 140NOE771x1 (Versions 7.0 and prior), Quantum processors with integrated Ethernet – 140CPU65xxxxx (all Versions), and Premium processors with integrated Ethernet (all Versions), which could cause a Denial of Service when sending a specially crafted command over Modbus.

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
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Weaknesses

CWE-754

Affected Products

Modicon Quantum Ethernet Network module and Quantum / Premium COPRO (Quantum Ethernet Network module 140NOE771x1, versions 7.0 and prior, Quantum processors with integrated Ethernet – 140CPU65xxxxx, all versions, Premium processors with integrated Ethernet, all versions)n/a
140noe77101 firmwareschneider-electricICS / OT / IoT
140noe77111 firmwareschneider-electricICS / OT / IoT
tsxh5744m firmwareschneider-electricICS / OT / IoT
tsxh5724m firmwareschneider-electricICS / OT / IoT
schneider-electriccommercialFRICS / OT / IoTaka schneider electric se
and 24 more affected products View all →

Exploitability

Official Patch Available

References

https://www.se.com/ww/en/download/document/SEVD-2020-070-02/
se.com

Timeline

Published
Mar 23, 2020
Last Updated
May 28, 2026

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