CVE-2026-12659

HighCVSS 8.7/10Last modified Oct 24, 2026

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.

Metrics

CVSS 4.0 8.7/10CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Weakness enumeration

CWE-415

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

VendorProductVersions
Rockwell AutomationThe FLEX 5000® EtherNet/IP Adapterversion 6.011

References

Timeline

Published
Jul 14, 2026
Last modified
Oct 24, 2026
NVD status
Awaiting Analysis

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CVE-2026-12659: High severity, CVSS 8.7 | Vulnix