Denial of Service Vulnerability in Modicon Controllers by Schneider Electric
CVE-2019-6807

7.5HIGH

Key Information:

Vendor

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

What is CVE-2019-6807?

The vulnerability affects various Modicon controllers, enabling a risk of denial of service due to uncaught exceptions. When sensitive application variables are written to the controllers over Modbus, the affected devices may become unresponsive, impacting system reliability and performance. Organizations using these controllers should ensure their systems are patched and monitored to mitigate the risks associated with this vulnerability.

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

  • Vulnerability published

  • Vulnerability Reserved

.