View CSAF Summary Successful exploitation of this vulnerability could allow an attacker to cause a denial-of-service condition. The following versions of Rockwell Automation 1756-EN2, 1756-EN3, and 1756-ENBT are affected: 1756-EN3 <=V12.001 (CVE-2026-9653) 1756-EN2 <=V12.001 (CVE-2026-9653) 1756-ENBT V6.006 (CVE-2026-9653) CVSS Vendor Equipment Vulnerabilities v3 7.5 Rockwell Automation Rockwell Automation 1756-EN2, 1756-EN3, and 1756-ENBT Improper Validation of Integrity Check Value Background Critical Infrastructure Sectors: Critical Manufacturing Countries/Areas Deployed: Worldwide Company Headquarters Location: United States Vulnerabilities Expand All + CVE-2026-9653 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 device connections, though device connections will recover immediately after. View CVE Details Affected Products Rockwell Automation 1756-EN2, 1756-EN3, and 1756-ENBT Vendor: Rockwell Automation Product Version: Rockwell Automation 1756-EN3: <=V12.001, Rockwell Automation 1756-EN2: <=V12.001, Rockwell Automation 1756-ENBT: V6.006 Product Status: known_affected Remediations Vendor fix Rockwell Automation recommend...