Rockwell Automation 1756-ENBT Module

September 3, 2026·Source: CISA

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TL;DR

View CSAF Summary Successful exploitation of this vulnerability could crash the module. The device requires a restart to recover. The following versions of Rockwell Automation 1756-ENBT Module are affected: 1756-ENBT module vers:all/* (CVE-2025-10478) CVSS Vendor Equipment Vulnerabilities

v3 7.5 Rockwell Automation Rockwell Automation 1756-ENBT Module Improper Check for Unusual or Exceptional Conditions

Background Critical Infrastructure Sectors: Critical Manufacturing, Food and Agriculture, Transportation Systems, Water and Wastewater Countries/Areas Deployed: Worldwide Company Headquarters Location: United States Vulnerabilities Expand All + CVE-2025-10478 A denial-of-service security issue exists in the Rockwell Automation 1756-ENBT module which is a ControlLogix EtherNet/IP bridge that enables communication between Logix 5000 controllers and Ethernet devices. An attacker could exploit this vulnerability by sending a crafted CIP packet, causing the module to crash. The device requires a restart to recover. View CVE Details Affected Products Rockwell Automation 1756-ENBT Module Vendor: Rockwell Automation Product Version: Rockwell Automation 1756-ENBT module: vers:all/* Product Status: known_affected Remediations Mitigation Rockwell Automation recommends that users upgrade to 1756-EN2T or 1756-EN4TR. Users who are not able to upgrade should use Rockwell Automation's security best practices. https://support.rockwellautomation.com/app/answers/answer_view/a_id/1085012/loc/en_US#__highlight Mitigation For more information on this issue, see the corresponding Rockwell Automation security advisory. https://www.rockwellautomation.com/en-us/trust-center/security-advisories.html Relevant CWE: CWE-754 Improper Check for Unusual or Exceptional Conditions Metrics CVSS Version Base Score Base Severity Vector String

3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

4.0 8.7 HIGH 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

Acknowl

What Happened

Rockwell Automation 1756-ENBT Module, reported by CISA.

v3 7.5 Rockwell Automation Rockwell Automation 1756-ENBT Module Improper Check for Unusual or Exceptional Conditions

3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

4.0 8.7 HIGH 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

Acknowl

For the full technical details, see the original report.

Why It Matters for Businesses

This development could affect organizations that rely on the impacted technologies or services. Unpatched systems, misconfigured infrastructure, or lack of monitoring can leave businesses exposed to exploitation, data breaches, and regulatory penalties.

How to Check Your Exposure

Run a free scan on NEL Professional's Cyber Risk Scanner to check whether your domain is affected. The scan covers SSL/TLS, security headers, DNS configuration, email authentication, and more across 16 modules.

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Mitigation Steps

Patch immediately, Apply vendor patches or updates as soon as they are available.
Review configurations, Check firewall rules, access controls, and security headers.
Monitor logs, Watch for indicators of compromise (IOCs) related to this threat.
Update security policies, Ensure incident response plans cover this type of threat.
Run a security scan, Use automated tools to verify your exposure.

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