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CVE-2018-7821

Published: May 22, 2019Updated: May 29, 2026 Sources: CVE List NVD BDUCWE-770
NVD MITRE
7.5CVSSHIGH
EPSS Score
1.1%
Top 38.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

An Environment (CWE-2) vulnerability exists in SoMachine Basic, all versions, and Modicon M221(all references, all versions prior to firmware V1.10.0.0) which could cause cycle time impact when flooding the M221 ethernet interface while the Ethernet/IP adapter is activated.

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-770CWE-400

Affected Products

SoMachine Basic and Modicon M221, SoMachine Basic, all versions Modicon M221, all references, all versions prior to firmware V1.10.0.0n/a
Modicon M221Schneider ElectricICS / OT / IoT
SoMachine BasicSchneider ElectricICS / OT / IoT
somachine basicschneider-electricICS / OT / IoT
modicon m221 firmwareschneider-electricICS / OT / IoT
schneider electriccommercialFRICS / OT / IoTaka schneider-electric
schneider-electriccommercialFRICS / OT / IoTaka schneider electric se

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

https://www.schneider-electric.com/en/download/document/SEVD-2019-045-01/
schneider-electric.com
https://download.schneider-electric.com/files?p_enDocType=Technical+leaflet&p_File_Name=SEVD-2019-045-01-SoMachineBasic+M221.pdf&p_Doc_Ref=SEVD-2019-045-01
download.schneider-electric.com

Timeline

Published
May 22, 2019
Last Updated
May 29, 2026

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