CVE-2021-22681CISA KEVEPSS p97.7%

CVE-2021-22681Rockwell Multiple Products Insufficient Protected Credentials Vulnerability

Rockwell / Multiple Products

Description

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.

Scoring

EPSS25.45% probability of exploitation · percentile 97.7% · 2026-06-18T12:00:27Z

CISA KEV entry

Added to KEV: 2026-03-05

(incoming)1

TypeTargetConfidenceTier
KEVEntryRockwell Multiple Products Insufficient Protected Credentials Vulnerabilitykev-cve-2021-226810%live

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Sourced from NVD + CISA KEV + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.