Description
A denial-of-service security issue exists within the 1794-AENTR adapter due to improper memory handling of CIP protocol requests. This vulnerability can result in the adapter faulting and losing connection to its associated I/O modules, requiring a manual reset to recover.
Published: 2026-06-16
Score: 8.7 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Fri, 26 Jun 2026 10:45:00 +0000

Type Values Removed Values Added
First Time appeared Rockwellautomation
Rockwellautomation flex I/o Ethernet/ip Adapter
Vendors & Products Rockwellautomation
Rockwellautomation flex I/o Ethernet/ip Adapter

Tue, 16 Jun 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 16 Jun 2026 15:00:00 +0000

Type Values Removed Values Added
Description A denial-of-service security issue exists within the 1794-AENTR adapter due to improper memory handling of CIP protocol requests. This vulnerability can result in the adapter faulting and losing connection to its associated I/O modules, requiring a manual reset to recover.
Title Rockwell Automation FLEX I/O Dual-port EtherNet/IP Adapters – Multiple Vulnerabilities
Weaknesses CWE-401
References
Metrics cvssV4_0

{'score': 8.7, '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'}


Subscriptions

Rockwellautomation Flex I/o Ethernet/ip Adapter
cve-icon MITRE

Status: PUBLISHED

Assigner: Rockwell

Published:

Updated: 2026-06-16T15:24:33.927Z

Reserved: 2026-01-06T16:08:44.716Z

Link: CVE-2026-0646

cve-icon Vulnrichment

Updated: 2026-06-16T15:24:30.668Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-06-16T15:16:33.567

Modified: 2026-06-16T15:26:04.250

Link: CVE-2026-0646

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-26T09:45:20Z

Weaknesses