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High ICSA-26-197-02 1 CVE

Rockwell Automation 1756-EN2, 1756-EN3, and 1756-ENBT

Published Jul 16, 2026 · Updated Jul 16, 2026

Vendor: Rockwell Automation Product: 1756-EN2 Product: 1756-EN3 Product: 1756-ENBT

Summary

Successful exploitation of this vulnerability could allow an attacker to cause a denial-of-service condition.

Vulnerabilities 1

  • High 8.7
    CVE-2026-9653

    1756-EN2, 1756-EN3, and 1756-ENBT - Denial of Service via CIP Connection ID

    A denial-of-service security issue exists across all the 1756-EN2, EN3, and ENBT communication module due to improper validation of CIP Implicit Connection packets. An attacker on the network can exploit this by sending crafted packets to continuously disrupt…

    Rockwell Automation 1756-EN2, 1756-EN3 1756-ENBT ICS / OT

Revision history

  1. #1

    Initial Publication

References