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High · 8.7 CVE-2026-12659 EUVD-2026-43712GHSA-vxg7-9hgq-fphj

Rockwell Automation Flex 5000® Adapter - Denial of Service

Published Jul 14, 2026 · Updated Jul 14, 2026 · Assigned by Rockwell

Description

A denial-of-service security issue exists in the affected products. The security issue stems from improper handling of exceptional conditions when processing crafted CIP packets sent to the adapter. A power cycle is required to recover the module and associated I/O.

Affected products

VendorProductAffectedFixed
Rockwell Automation The FLEX 5000® EtherNet/IP Adapter version 6.011 —

Advisories 1

References