Vulnerability Details CVE-2018-7846
A CWE-501: Trust Boundary Violation vulnerability on connection to the Controller exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum and Modicon Premium which could cause unauthorized access by conducting a brute force attack on Modbus protocol to the controller.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.382
EPSS Ranking 97.0%
CVSS Severity
CVSS v3 Score 9.8
CVSS v2 Score 5.0
References
Products affected by CVE-2018-7846
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cpe:2.3:h:schneider-electric:modicon_m340:-
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cpe:2.3:h:schneider-electric:modicon_m580:-
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cpe:2.3:h:schneider-electric:modicon_premium:-
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cpe:2.3:h:schneider-electric:modicon_quantum:-
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cpe:2.3:o:schneider-electric:modicon_m340_firmware:-
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cpe:2.3:o:schneider-electric:modicon_m340_firmware:3.01
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cpe:2.3:o:schneider-electric:modicon_m340_firmware:3.10
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cpe:2.3:o:schneider-electric:modicon_m340_firmware:3.20
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cpe:2.3:o:schneider-electric:modicon_m580_firmware:-
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cpe:2.3:o:schneider-electric:modicon_m580_firmware:2.10
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cpe:2.3:o:schneider-electric:modicon_m580_firmware:2.12
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cpe:2.3:o:schneider-electric:modicon_m580_firmware:2.30
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cpe:2.3:o:schneider-electric:modicon_m580_firmware:2.41
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cpe:2.3:o:schneider-electric:modicon_m580_firmware:2.80
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cpe:2.3:o:schneider-electric:modicon_m580_firmware:2.90
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cpe:2.3:o:schneider-electric:modicon_m580_firmware:3.10
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cpe:2.3:o:schneider-electric:modicon_premium_firmware:-
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cpe:2.3:o:schneider-electric:modicon_premium_firmware:3.20
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cpe:2.3:o:schneider-electric:modicon_quantum_firmware:-
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cpe:2.3:o:schneider-electric:modicon_quantum_firmware:2.40
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cpe:2.3:o:schneider-electric:modicon_quantum_firmware:3.60