Live › vulnerability › CVE-2021-22681
Go to dashboardRockwell Studio 5000 Logix Designer may let an attacker discover a key used to verify that Logix controllers talk only to Rockwell design software. With that key, an unauthorized application can connect to Logix controllers.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 19:11 UTC, 5h before NVD. All times on this page are UTC.
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
| Product | Ecosystem | Affected | Fixed in |
|---|---|---|---|
| Rockwell Multiple Products | vendor | – | – |
| rockwellautomation factorytalk services platform | vendor | >= 2.10 | – |
| rockwellautomation rslogix 5000 | vendor | >= 16, <= 20 | – |
| rockwellautomation studio 5000 logix designer | vendor | >= 21.0 | – |
Unknown from the sources.
Apply mitigations per the vendor instructions referenced by CISA, or discontinue use of the affected product if mitigations are unavailable.
Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
Rockwell Automation Studio 5000 Logix Designer Versions 21 and later, and RSLogix 5000 Versions 16 through 20 use a key to verify Logix controllers are communicating with Rockwell Automation CompactLogix 1768, 1769, 5370, 5380, 5480: ControlLogix 5550, 5560, 5570, 5580; DriveLogix 5560, 5730, 1794-L34; Compact GuardLogix 5370, 5380; GuardLogix 5570, 5580; SoftLogix 5800. Rockwell Automation Studio 5000 Logix Designer Versions 21 and later and RSLogix 5000: Versions 16 through 20 are vulnerable because an unauthenticated attacker could bypass this verification mechanism and authenticate with Rockwell Automation CompactLogix 1768, 1769, 5370, 5380, 5480: ControlLogix 5550, 5560, 5570, 5580; DriveLogix 5560, 5730, 1794-L34; Compact GuardLogix 5370, 5380; GuardLogix 5570, 5580; SoftLogix 5800.
This page as .md · .json · in your agent: get_signal("CVE-2021-22681")
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