Denial-of-Service Vulnerability in 1719-AENTR by Rockwell Automation
CVE-2026-9140

8.7HIGH

Key Information:

Vendor

Rockwell Automation
Status
1718-aentr/1719-aentr
Vendor
CVE Published:
14 July 2026

What is CVE-2026-9140?

A security issue has been identified in the 1719-AENTR device, attributed to the improper handling of a UDP unicast network storm. This flaw can lead to device overload and loss of communication, requiring a power cycle for recovery. Such vulnerabilities can significantly impact network reliability and operational integrity.

Affected Version(s)

1718-AENTR/1719-AENTR 3.011

References

https://www.rockwellautomation.com/en-us/trust-center/sec...

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.