Buffer Overflow Vulnerability in Schneider Electric Modicon PLCs
CVE-2018-7759

7.5HIGH

Key Information:

Vendor
Schneider Electric
Status
Modicon M340, Modicon Premium, Modicon Quantum, Bmxnor0200
Vendor
CVE Published:
18 April 2018

Summary

A buffer overflow vulnerability has been identified in Schneider Electric's Modicon PLCs, including the Modicon M340, Premium, Quantum, and BMXNOR0200 models. This vulnerability arises from the mishandling of source string lengths, allowing more bytes to be copied than the designated buffer can handle, potentially leading to unauthorized access or system instability.

Affected Version(s)

Modicon M340, Modicon Premium, Modicon Quantum, BMXNOR0200 All Modicon M340, Premium, Quantum PLCs and BMXNOR0200

References

https://www.schneider-electric.com/en/download/document/S...
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CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.