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PatchSiren cyber security CVE debrief

CVE-2026-11317 Rockwell Automation CVE debrief

A denial of service security issue exists in the affected product. The security issue stems from a fault occurring when a crafted CIP message is sent. Devices with less memory are more likely to be affected. This can result in a major nonrecoverable fault (MNRF). A program download is required to recover.

Vendor
Rockwell Automation
Product
CompactLogix, ControlLogix
CVSS
HIGH 7.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-16
Original CVE updated
2026-06-16
Advisory published
2026-06-16
Advisory updated
2026-06-16

Who should care

Users of the affected product, particularly those with devices having limited memory, should be aware of this vulnerability as it can lead to a major nonrecoverable fault.

Technical summary

The vulnerability is caused by a fault that occurs when a crafted CIP message is sent to the affected product. This can result in a denial of service and requires a program download to recover.

Defensive priority

HIGH

Recommended defensive actions

  • Users should apply the necessary patches or updates provided by the vendor to mitigate this vulnerability.
  • Implement network segmentation and access controls to limit the attack surface.
  • Monitor network traffic for suspicious activity.

Evidence notes

The CVE-2026-11317 record indicates a CVSS score of 8.7 and a HIGH severity level. The vulnerability is related to CWE-404.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-11317 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-11317

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-11317 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-11317

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.