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Vulnerabilities CVE-2021-22681

CVE-2021-22681

Medium
Open
KEV
TLP:CLEAR

Rockwell Multiple Products Insufficient Protected Credentials Vulnerability

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Description

Rockwell — Multiple Products — 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.

Details

EPSS Score
60.99%

99.1th percentile

Confidence
100%
CISA KEV
Date Added
Mar 5, 2026
Patch Due
Mar 26, 2026
Required Action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
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