VULNERABILITY INTELLIGENCE

CVE-2018-7843

CVSS score7.5 HIGH
EPSS probability3.16%
CISA KEVNot currently listed
Published2019-05-22
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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.

Weakness classification

  • CWE-125: Out-of-bounds Read

Primary references