Public preview. Built from real public data on November 9, 2026, 5:41 AM UTC.
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Industrial control advisorySeverity 7.5 high

Rockwell Automation 1756-ENBT Module

ICSA-26-246-05 · CISA · September 3, 2026

Summary

Successful exploitation of this vulnerability could crash the module. The device requires a restart to recover.

From CISA, quoted as published. Check the source before acting.

What to do

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. For more information on this issue, see the corresponding Rockwell Automation security advisory.

Vendor fix or mitigation, quoted from the advisory.

Each CVE in this advisory

CVESeverityKnown exploitedExploit likelihoodWeakness
CVE-2025-104787.5 highNo—Improper Check for Unusual or Exceptional Conditions (CWE-754)

Severity from the advisory (CVSS), known exploitation from CISA's catalog, exploit likelihood from EPSS (next 30 days).

Affected products

VendorProductAffected versionsFixed
Rockwell Automation1756-ENBT modulevers:all/*—

Why it's on these mode pages

  • Maritime: Vendor table: Rockwell Automation (industrial control makers used in every mode, all modes) (matched by rule)
  • Pipeline: Vendor table: Rockwell Automation (industrial control makers used in every mode, all modes) (matched by rule)
  • Freight rail: Vendor table: Rockwell Automation (industrial control makers used in every mode, all modes) (matched by rule)
  • Passenger rail and transit: Vendor table: Rockwell Automation (industrial control makers used in every mode, all modes) (matched by rule)
  • Highway and motor carrier: Vendor table: Rockwell Automation (industrial control makers used in every mode, all modes) (matched by rule)
  • Postal and parcel: Vendor table: Rockwell Automation (industrial control makers used in every mode, all modes) (matched by rule)

Change history

  1. September 3, 2026: Initial Republication of Rockwell Automation security advisory.
  2. November 9, 2026: First collected by Watch

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