CVE-2019-6844

MEDIUM

Modicon - DoS

Title source: llm

Description

A CWE-755: Improper Handling of Exceptional Conditions vulnerability exists in Modicon M580, Modicon M340, Modicon BMxCRA and 140CRA modules (all firmware versions), which could cause a Denial of Service atack on the PLC when upgrading the controller with a firmware package containing an invalid web server image using FTP protocol.

References (1)

[Vendor Advisory] https://www.se.com/ww/en/download/document/SEVD-2019-281-02/

Scores

CVSS v3 4.9

EPSS 0.0036

EPSS Percentile 58.0%

Attack Vector NETWORK

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

Classification

CWE

CWE-755

Status published

Affected Products (4)

schneider-electric/modicon_m580_firmware

schneider-electric/modicon_m340_firmware

schneider-electric/modicon_bmxcra_firmware

schneider-electric/modicon_140cra_firmware

Timeline

Published Oct 29, 2019

Tracked Since Feb 18, 2026