Skip to content
OpenAdvisories
Critical 1 exploited CVE ICSA-21-056-03 1 CVE

Rockwell Automation Logix Controllers (Update A)

Published Feb 25, 2021 · Updated Mar 18, 2021 · Revision 2

Vendor: Rockwell Automation Product: FactoryTalk Security part of the FactoryTalk Services Platform if configured and deployed Product: RSLogix 5000 Product: Studio 5000 Logix Designer

Summary

Successful exploitation of this vulnerability could allow a remote unauthenticated attacker to bypass the verification mechanism and connect with Logix controllers. Additionally, this vulnerability could enable an unauthorized third-party tool to alter the controller 's configuration and/or application code.

Vulnerabilities 1

  • Critical 9.8
    CVE-2021-22681 Exploited Public exploit EPSS 64%

    Rockwell Automation Studio 5000 Logix Designer Versions 21 and later, and RSLogix 5000 Versions 16 through 20 use a key…

    KEV Mar 5, 2026

Revision history

  1. #2

    ICSA-21-056-03 Rockwell Automation Logix Controllers (Update A)

  2. #1

    ICSA-21-056-03 Rockwell Automation Logix Controllers

References