Home/CVE/A buffer overflow vulnerability exists in Schneider Electric's Modicon M340, Modicon Premium, Modicon Quantum PLC, BMXNO
CVE

CVE-2018-7759

A buffer overflow vulnerability exists in Schneider Electric's Modicon M340, Modicon Premium, Modicon Quantum PLC, BMXNO

A buffer overflow vulnerability exists in Schneider Electric's Modicon M340, Modicon Premium, Modicon Quantum PLC, BMXNOR0200. The buffer overflow vulnerability is caused by the length of the source string specified (instead of the buffer size) as the number of bytes to be copied.

HIGH · CVSS 7.5 EPSS 0.00821
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
▤

Affected Products & Versions

57
schneider-electric bmxnor0200 firmwareall versions
schneider-electric bmxnor0200h firmwareall versions
schneider-electric 140cpu65150 firmwareall versions
schneider-electric 140cpu31110 firmwareall versions
schneider-electric 140cpu43412u firmwareall versions
schneider-electric 140cpu65160 firmwareall versions
schneider-electric 140cpu65260 firmwareall versions
schneider-electric 140cpu65860 firmwareall versions
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.0 · cybersecurity@se.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD18 Apr 2018 · 08:29 PM
CVSS VectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://www.schneider-electric.com/en/download/document/SEVD-2018-081-02/Vendor Advisory
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