CVE-2026-12659

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.

• CWE-415

• https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1789.html

Published

Jul 14, 2026

Last Modified

Jul 14, 2026

Status

Awaiting Analysis

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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