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CVE-2018-7791

Published: Aug 29, 2018Updated: May 29, 2026 Sources: CVE List NVD BDU csafCWE-287
9.8CRITICAL
NVD MITRE
EPSS Score
1.9%
Top 23.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

Description

A Permissions, Privileges, and Access Control 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 overwrite the original password with their password. If an attacker exploits this vulnerability and overwrite the password, the attacker can upload the original program from the PLC.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-287CWE-284

Affected Products

Schneider Electric SE
commercial·FRaka pelco sarix professional, u.motion, modicon m340, premium quantum plcs, bmxnor0200
Modicon M221, all references, all versions prior to firmware V1.6.2.0Embedded
ICS / OT / IoT / plc-scada-hmi
schneider-electric
commercial·FRaka schneider electric se
modicon m221 firmware
ICS / OT / IoT
Schneider Electric
commercial·FRaka schneider-electric
Modicon M221
ICS / OT / IoT

Exploitability

Official Patch Available
Workaround Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Initial Access
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References

http://www.securityfocus.com/bid/105182
securityfocus.com
https://www.schneider-electric.com/en/download/document/SEVD-2018-235-01/
schneider-electric.com
https://www.securityfocus.com/bid/105182/info
securityfocus.com
and 10 more references View all →

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