CVE-2026-9140 PUBLISHED

1718-AENTR/1719-AENTR - Denial of Service

Assigner: Rockwell
Reserved: 20.05.2026 Published: 14.07.2026 Updated: 14.07.2026

A denial-of-service security issue exists in the 1719-AENTR. The security issue stems from improper handling of a UDP unicast network storm, which causes the device to become overloaded and lose communication. A power cycle is required to recover.

Metrics

CVSS 4.0

CVSS Vector: 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
CVSS Score: 8.7

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	Rockwell Automation
Product	1718-AENTR/1719-AENTR
Versions	Default: unaffected Version 3.011 is affected

References

https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1778.html

Problem Types

CWE-770 Allocation of resources without limits or throttling CWE