[ CVE-2026-12656 · Published 13 Oct 2026 ]
Vulnerability in Rockwell Automation 1732E ArmorBlock® I/O
CVSS 8.7
EPSS <1%No fix listed yet
[ Description ]Official description
A denial-of-service security issue exists in the affected product and version. The security issue stems from improper handling of network storm traffic, which can interrupt communication, cause device faults, and affect open TCP and UDP ports. A power cycle is required to recover the device to its normal state.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.