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Status published
Unknown
CVE-2018-7789
An Improper Check for Unusual or Exceptional Conditions vulnerability exists...
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
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Affected Vendor
Schneider Electric SE
View all reports →Affected Software
Modicon M221, all references, all versions prior to firmware V1.6.2.0
Vulnerable Versions:
Modicon M221, all references, all versions prior to firmware V1.6.2.0
Timeline
Official Publish:
August 29th, 2018
Last Modified:
May 29th, 2026
Added to House:
July 20th, 2026
CVSS Vectors
No vector data available
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.