CVE-2018-7851

MEDIUM

Modicon M580 < 2.50, M340 < 3.01, BMxCRA312xx < 2.40 - DoS via Crafted Modbus Packet

Title source: llm

Description

CWE-119: Buffer errors vulnerability exists in Modicon M580 with firmware prior to V2.50, Modicon M340 with firmware prior to V3.01, BMxCRA312xx with firmware prior to V2.40, All firmware versions of Modicon Premium and 140CRA312xxx when sending a specially crafted Modbus packet, which could cause a denial of service to the device that would force a restart to restore availability.

References (1)

Core 1

Core References

Vendor Advisory x_refsource_misc

https://www.schneider-electric.com/en/download/document/SEVD-2019-134-10/

Scores

CVSS v3 6.5

EPSS 0.0033

EPSS Percentile 56.2%

Attack Vector NETWORK

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

Details

CWE

CWE-119

Status published

Products (5)

schneider-electric/140cra312xxx_firmware

schneider-electric/bmx\/e_cra_firmware < 2.40

schneider-electric/m340_firmware < 3.01

schneider-electric/m580_firmware < 2.50

schneider-electric/modicon_premium_firmware

Published May 22, 2019

Tracked Since Feb 18, 2026