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CVE-2020-7538

HIGH
7.5
CVSS Score
Published: November 19, 2020 at 09:04 PM UTC
Updated: June 17, 2026 at 03:24 AM UTC
2 products affected across 1 vendorEcoStruxure Control ExpertElectric Ecostruxure Control Expert

Using PLC Simulator on EcoStruxureª Control Expert (now Unity Pro) (all versions) by N/A?

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Severity
HIGH7.5
Exploit prediction
EPSS 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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_MISCPatchVendor Advisory
Source: [email protected]
https://www.se.com/ww/en/download/document/SEVD-2020-315-07/

CVSS

7.5HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-754

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