CVE-2026-12656 Details
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.
A denial-of-service vulnerability has been identified in the Rockwell Automation 1732E ArmorBlock I/O module, specifically in versions through 3.012. This issue arises from improper management of network storm traffic, which can disrupt communication, cause device malfunctions, and impact open TCP and UDP ports. To restore normal functionality, a power cycle is required.
Users of the affected software version who cannot upgrade to version 3.013 should follow Rockwell Automation's security best practices. For more information, contact Rockwell Automation's TechConnect.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 13, 2026CISA-ADP
Assessed Oct 13, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1801.html | [email protected] | AdvisoryBundleRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-770 | Allocation of Resources Without Limits or Throttling | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Rockwell Automation 1732E ArmorBlock I/O | <= 3.012 |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 13, 2026 | CVE Modified | CISA-ADP |
| Oct 13, 2026 | New CVE Received | [email protected] |