CVE-2026-9653
UNKNOWN
NVD
CVSS Score
0
Severity
UNKNOWN
Published
Jul 14, 2026
Vendor
unknown
Description
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.