CVE-2018-7843 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 denial of service when reading memory blocks with an invalid data size or with an invalid data offset in 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-2018-0738

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