CVE-2020-7538

HIGH

EcoStruxure Control Expert - Denial of Service via Modbus Request

Title source: llm
STIX 2.1

Description

A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in PLC Simulator on EcoStruxureª Control Expert (now Unity Pro) (all versions) that could cause a crash of the PLC simulator present in EcoStruxureª Control Expert software when receiving a specially crafted request over Modbus.

References (1)

Core 1
Core References
Patch, Vendor Advisory x_refsource_misc
https://www.se.com/ww/en/download/document/SEVD-2020-315-07/

Scores

CVSS v3 7.5
EPSS 0.0046
EPSS Percentile 64.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-754
Status published
Products (1)
schneider-electric/ecostruxure_control_expert
Published Nov 19, 2020
Tracked Since Feb 18, 2026