CVE-2026-9624

Summary

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.

Affected Software

VendorProductVersion RangeStatus
Rockwell AutomationRSLinx Classic®V4.50 and prioraffected

Weaknesses

  • CWE-191: CWE-191 Integer underflow (wrap or wraparound)

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: yes
    • Technical Impact: partial

References