Rockwell Multiple Products Insufficient Protected Credentials Vulnerability

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• NewsExploited · CISA KEVRockwell · Multiple Products

  Rockwell Multiple Products Insufficient Protected Credentials Vulnerability

  CVE-2021-22681

  Multiple Rockwell products contain an insufficient protected credentials vulnerability. Studio 5000 Logix Designer software may allow a key to be discovered. This key is used to verify Logix controllers are communicating with Rockwell Automation design software. If successfully exploited, this vulnerability could allow an unauthorized application to connect with Logix controllers. To leverage this vulnerability, an unauthorized user would require network access to the controller.

  CISA's required action · due 26 Mar 2026 for U.S. federal civilian agencies

  Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

  Cited by CISA: support.rockwellautomation.com · cisa.gov · nvd.nist.gov

  Added to KEV 5 Mar 2026 · Source checked 4 Nov 2026, 16:35 UTC · CISA KEV entry

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