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HIGH · 7.5

CVE-2020-7537

A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in Modicon M580, Modicon M340, Legacy Controllers Modicon Quantum & Modicon Premium (see security notifications for...

Vulnerability Description

A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in Modicon M580, Modicon M340, Legacy Controllers Modicon Quantum & Modicon Premium (see security notifications for affected versions), that could cause denial of service when a specially crafted Read Physical Memory request over Modbus is sent to the controller.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Affected Products

VendorProductVersions
Schneider-ElectricModicon M580 Bmep584040 Firmware< 3.20
Schneider-ElectricModicon M580 Bmep584040-
Schneider-ElectricModicon M580 Bmep582040 Firmware< 3.20
Schneider-ElectricModicon M580 Bmep582040-
Schneider-ElectricModicon M580 Bmep586040 Firmware< 3.20
Schneider-ElectricModicon M580 Bmep586040-
Schneider-ElectricModicon M580 Bmep585040 Firmware< 3.20
Schneider-ElectricModicon M580 Bmep585040-
Schneider-ElectricModicon M580 Bmep582020 Firmware< 3.20
Schneider-ElectricModicon M580 Bmep582020-
Schneider-ElectricModicon M580 Bmep581020 Firmware< 3.20
Schneider-ElectricModicon M580 Bmep581020-
Schneider-ElectricModicon M580 Bmep584020 Firmware< 3.20
Schneider-ElectricModicon M580 Bmep584020-
Schneider-ElectricModicon M580 Bmep583040 Firmware< 3.20
Schneider-ElectricModicon M580 Bmep583040-
Schneider-ElectricModicon M580 Bmep583020 Firmware< 3.20
Schneider-ElectricModicon M580 Bmep583020-
Schneider-ElectricModicon M340 Bmxp341000 Firmware< 3.30
Schneider-ElectricModicon M340 Bmxp341000-

Related Weaknesses (CWE)

CWE-754

References

FAQ

What is CVE-2020-7537?

CVE-2020-7537 is a vulnerability with a CVSS score of 7.5 (HIGH). A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in Modicon M580, Modicon M340, Legacy Controllers Modicon Quantum & Modicon Premium (see security notifications for...

How severe is CVE-2020-7537?

CVE-2020-7537 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-7537?

Check the references section above for vendor advisories and patch information. Affected products include: Schneider-Electric Modicon M580 Bmep584040 Firmware, Schneider-Electric Modicon M580 Bmep584040, Schneider-Electric Modicon M580 Bmep582040 Firmware, Schneider-Electric Modicon M580 Bmep582040, Schneider-Electric Modicon M580 Bmep586040 Firmware.