High severity7.5NVD Advisory· Published Nov 19, 2020· Updated Jun 17, 2026
CVE-2020-7538
CVE-2020-7538
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.
Patches
Vulnerability mechanics
References
1- www.se.com/ww/en/download/document/SEVD-2020-315-07/nvdPatchVendor Advisory
News mentions
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