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CVE-2026-9624

Last refreshed2026-10-06

Status: UPDATED  |  Advisory ID: CVE-2026-9624

Key Details

CVECVE-2026-9624
CVSS Score / Version8.7 (High) / CVSS v4.0
Updated2026-09-01
Affected productsRockwell Automation RSLinx Classic®
Classified asCWE-191 (Integer Underflow (Wrap or Wraparound))

Affected Products, Subsystems & Sectors

VendorProductAffected VersionsPatch Status
Rockwell AutomationRSLinx Classic®
SubsystemsGeneral OT
SectorsMultiple

What to Know

A denial-of-service security issue exists within RSLinx® Classic. A crafted CIP packet can cause the RSLinx® Classic service to crash due to insufficient data length validation, requiring a  restart of the service to recover. (NVD)

What to Do

Monitor Rockwell Automation's web page for any future patch releases.

References

SourceReference
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-9624
CVEhttps://www.cve.org/CVERecord?id=CVE-2026-9624