Uncaught Exception Vulnerability in Modicon Controllers: Potential Denial of Service via Invalid Memory Blocks

Uncaught Exception Vulnerability in Modicon Controllers: Potential Denial of Service via Invalid Memory Blocks

CVE-2018-7856 · HIGH Severity

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

A CWE-248: Uncaught Exception vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause a possible denial of Service when writing invalid memory blocks to the controller over Modbus.

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