VULNERABILITY INTELLIGENCE

CVE-2020-28212

CVSS score9.8 CRITICAL
EPSS probability2.76%
CISA KEVNot currently listed
Published2020-11-19
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Weakness classification

  • cybersecurity@se.com: CWE-307

Primary references