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.

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