CVE-2025-9166
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-09-09

Last updated on: 2025-10-20

Assigner: Rockwell Automation

Description
A denial-of-service security issue exists in the affected product and version. The security issue stems from the controller repeatedly attempting to forward messages. The issue could result in a major nonrecoverable fault on the controller.
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Meta Information
Published
2025-09-09
Last Modified
2025-10-20
Generated
2026-06-16
AI Q&A
2025-09-09
EPSS Evaluated
2026-06-14
NVD
CVE-2025-9166
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
rockwellautomation controllogix_5580_firmware 35.013
rockwellautomation controllogix_5580 *
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-476 The product dereferences a pointer that it expects to be valid but is NULL.
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Executive Summary

This vulnerability is a denial-of-service (DoS) issue in Rockwell Automation's ControlLogix 5580 controller software version 35.013. It occurs because the controller repeatedly attempts to forward messages, which can cause a major nonrecoverable fault (MNRF) that stops the controller from functioning properly. The issue is classified as a NULL Pointer Dereference (CWE-476). [1]

Impact Analysis

The vulnerability can cause the affected controller to experience a major nonrecoverable fault, leading to a denial of service where the controller cannot recover or operate correctly. This can disrupt operations that depend on the controller, potentially causing downtime or loss of control in automated systems. [1]

Mitigation Strategies

The vulnerability has been corrected in Rockwell Automation ControlLogix 5580 controller software version 35.014 and later. Immediate mitigation is to upgrade the controller software to version 35.014 or newer. There is no workaround available. For customers unable to upgrade immediately, it is advised to follow Rockwell Automation’s security best practices. [1]

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