CVE-2026-12656 PUBLISHED

1732E ArmorBlock® - Multiple Vulnerabilities

Assigner: Rockwell
Reserved: 18.06.2026 Published: 13.10.2026 Updated: 13.10.2026

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.

Metrics

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CVSS Score: 8.7

Product Status

Vendor Rockwell Automation
Product 1732E ArmorBlock® I/O
Versions Default: unaffected
  • affected from 0 to 3.012 (incl.)

Solutions

3.013 or later

References

Problem Types

  • CWE-770: Allocation of Resources Without Limits or Throttling CWE