CVE-2018-7856 Information

Description

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.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

https://www.schneider-electric.com/en/download/document/SEVD-2019-134-11/ https://www.talosintelligence.com/vulnerability_reports/TALOS-2019-0767

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5