What’s Vulnerable › Vulnerabilities

CVE-2020-28211

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% 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-863

Description

A CWE-863: Incorrect Authorization vulnerability exists in PLC Simulator on EcoStruxureª Control Expert (now Unity Pro) (all versions) that could cause bypass of authentication when overwriting memory using a debugger.

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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