Denial of Service Vulnerability in Schneider Electric Modicon Controllers
CVE-2018-7854

7.5HIGH

Key Information:

Vendor

Schneider Electric
Status
Modicon M580 Modicon M340 Modicon Quantum Modicon Premium
Vendor
CVE Published:
22 May 2019

Badges

👾 Exploit Exists

What is CVE-2018-7854?

A vulnerability exists in all versions of Schneider Electric's Modicon controllers, including the M580, M340, Quantum, and Premium series. This vulnerability, categorized as a CWE-248 issue, can be exploited through the Modbus protocol by sending invalid debug parameters to the controller. Successful exploitation may lead to a denial of service condition, impacting the availability of the affected products.

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Affected Version(s)

Modicon M580 Modicon M340 Modicon Quantum Modicon Premium Modicon M580 Modicon M340 Modicon Quantum Modicon Premium

References

https://www.schneider-electric.com/en/download/document/S...
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https://www.talosintelligence.com/vulnerability_reports/T...
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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

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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