What’s Vulnerable › Vulnerabilities

CVE-2020-7538

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-11-19 · updated 2026-06-17
• Weakness: CWE-754

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.

Affected products

• Schneider Electric EcoStruxure Control Expert: all versions

References

• https://www.se.com/ww/en/download/document/SEVD-2020-315-07/
• https://www.se.com/ww/en/download/document/SEVD-2020-315-07/

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