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CVE-2018-7789

Published: Aug 29, 2018Updated: May 29, 2026 Sources: CVE List NVD BDU csafCWE-754
NVD MITRE
7.5CVSSHIGH
EPSS Score
2.8%
Top 15.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

An Improper Check for Unusual or Exceptional Conditions vulnerability exists in Schneider Electric's Modicon M221 product (all references, all versions prior to firmware V1.6.2.0). The vulnerability allows unauthorized users to remotely reboot Modicon M221 using crafted programing protocol frames.

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-754

Affected Products

modicon m221 firmwareschneider-electricICS / OT / IoT
Modicon M221Schneider ElectricICS / OT / IoT
Modicon M221, all references, all versions prior to firmware V1.6.2.0Schneider Electric SE
Embedded
ICS / OT / IoT / plc-scada-hmi
schneider-electriccommercialFRICS / OT / IoTaka schneider electric se
schneider electriccommercialFRICS / OT / IoTaka schneider-electric
schneider electric secommercialFRICS / OT / IoTaka u.motion, pelco sarix professional, modicon m340, premium quantum plcs, bmxnor0200

Exploitability

Official Patch Available
Workaround Available

References

http://www.securityfocus.com/bid/105171
securityfocus.com
https://ics-cert.us-cert.gov/advisories/ICSA-18-240-02
ics-cert.us-cert.gov
https://www.schneider-electric.com/en/download/document/SEVD-2018-233-01/
schneider-electric.com
and 8 more references View all →

Timeline

Published
Aug 29, 2018
Last Updated
May 29, 2026

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