Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-0646— Rockwell Automation FLEX I/O Dual-port EtherNet/IP Adapters – Multiple Vulnerabilities

Quick assessment

Affected
Rockwell Automation FLEX I/O EtherNet/IP Adapters
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Rockwell Automation FLEX I/O EtherNet/IP Adapters是美国Rockwell Automation基金会的一个工业自动化以太网适配器模块。 Rockwell Automation FLEX I/O EtherNet/IP Adapters 2.012版本存在资源管理错误漏洞，该漏洞源于对CIP协议请求的内存处理不当，可能导致适配器发生故障并失去与其关联的I/O模块的连接，需要手动重置才能恢复。

AI Predicted 7.5 Difficulty: Easy EPSS 0.34% · P26

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 1

VendorProduct Version RangeStatus
Rockwell Automation FLEX I/O EtherNet/IP Adapters 2.012 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-0646

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Rockwell Automation FLEX I/O Dual-port EtherNet/IP Adapters – Multiple Vulnerabilities
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
在移除最后引用时对内存的释放不恰当(内存泄露)
Source: CVE Program / CVE List V5
Vulnerability Title
Rockwell Automation FLEX I/O EtherNet/IP Adapters 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Rockwell Automation FLEX I/O EtherNet/IP Adapters是美国Rockwell Automation基金会的一个工业自动化以太网适配器模块。 Rockwell Automation FLEX I/O EtherNet/IP Adapters 2.012版本存在资源管理错误漏洞，该漏洞源于对CIP协议请求的内存处理不当，可能导致适配器发生故障并失去与其关联的I/O模块的连接，需要手动重置才能恢复。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Rockwell Automation FLEX I/O EtherNet/IP Adapters 2.012 -

II. Public POCs for CVE-2026-0646

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-0646

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-0646 (1)

Same Patch Batch · Rockwell Automation · 2026-06-16 · 7 CVEs total

CVE-2026-0647 Rockwell Automation FLEX I/O Dual-port EtherNet/IP Adapters – Multiple Vulnerabilities
CVE-2026-11317 Rockwell Automation Logix 5370 and 5570 Controllers Vulnerable To Denial of Service Via CI
CVE-2026-9307 Rockwell Automation CompactLogix 5370 Controllers – Multiple Vulnerabilities
CVE-2025-11694 Rockwell Automation CompactLogix 5370 Controllers – Multiple Vulnerabilities
CVE-2025-14272 Rockwell Automation FactoryTalk Analytics PavilionX
CVE-2025-13036 Rockwell Automation FactoryTalk Historian Site Edition - Authentication Bypass

IV. Related Vulnerabilities

Same product: FLEX I/O EtherNet/IP Adapters
Same vendor: Rockwell Automation
Same weakness: CWE-401

V. Comments for CVE-2026-0646

No comments yet

Leave a comment