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Vulnerability · Published Nov 19, 2020 · Assigned by schneider

CVE-2020-28212

Critical 9.8

In plain English

A critical-severity security flaw in PLC Simulator on EcoStruxureª Control Expert (now Unity Pro) (all versions). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.8% (higher than 86% of all known vulnerabilities).

Severity (CVSS NVD)9.8Critical
Exploit odds (30 days)2.8%top 13.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

A CWE-307: Improper Restriction of Excessive Authentication Attempts vulnerability exists in PLC Simulator on EcoStruxureª Control Expert (now Unity Pro) (all versions) that could cause unauthorized command execution when a brute force attack is done over Modbus.

Affected products (as reported)

VendorProductVersions
n/a PLC Simulator on EcoStruxureª Control Expert (now Unity Pro) (all versions) PLC Simulator on EcoStruxureª Control Expert (now Unity Pro) (all versions)

Weakness: CWE-307

References