Firetruck

CVE-2021-22681

KEV
Updated Mar 6, 2026 · PUBLISHED
View KEV entry →

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.

Full record on cve.org →

Affected packages

PackageVendor / ProductVersion rangeStatus
Rockwell Automation Studio 5000 Logix Designer, RSLogix 5000, Logix Controllersn/a / Rockwell Automation Studio 5000 Logix Designer, RSLogix 5000, Logix ControllersCompact GuardLogix 5370, 5380affected
Rockwell Automation Studio 5000 Logix Designer, RSLogix 5000, Logix Controllersn/a / Rockwell Automation Studio 5000 Logix Designer, RSLogix 5000, Logix ControllersCompactLogix 1768, 1769, 5370, 5380, 5480affected
Rockwell Automation Studio 5000 Logix Designer, RSLogix 5000, Logix Controllersn/a / Rockwell Automation Studio 5000 Logix Designer, RSLogix 5000, Logix ControllersControlLogix 5550, 5560, 5570, 5580affected
Rockwell Automation Studio 5000 Logix Designer, RSLogix 5000, Logix Controllersn/a / Rockwell Automation Studio 5000 Logix Designer, RSLogix 5000, Logix ControllersDriveLogix 5560, 5730, 1794-L34affected
Rockwell Automation Studio 5000 Logix Designer, RSLogix 5000, Logix Controllersn/a / Rockwell Automation Studio 5000 Logix Designer, RSLogix 5000, Logix ControllersGuardLogix 5570, 5580affected
Rockwell Automation Studio 5000 Logix Designer, RSLogix 5000, Logix Controllersn/a / Rockwell Automation Studio 5000 Logix Designer, RSLogix 5000, Logix ControllersRSLogix 5000 Versions 16 through 20affected
Rockwell Automation Studio 5000 Logix Designer, RSLogix 5000, Logix Controllersn/a / Rockwell Automation Studio 5000 Logix Designer, RSLogix 5000, Logix ControllersSoftLogix 5800affected
Rockwell Automation Studio 5000 Logix Designer, RSLogix 5000, Logix Controllersn/a / Rockwell Automation Studio 5000 Logix Designer, RSLogix 5000, Logix ControllersStudio 5000 Logix Designer: Versions 21 and lateraffected