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CVE-2026-11317— Rockwell Automation Logix 5370 and 5570 Controllers Vulnerable To Denial of Service Via CIP

Quick assessment

Affected
Rockwell Automation CompactLogix, ControlLogix
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 CompactLogix是美国Rockwell Automation基金会的一款可编程自动化控制器。 Rockwell Automation CompactLogix 存在资源管理错误漏洞，该漏洞源于发送特制CIP消息时出现错误，可能导致主要不可恢复故障，从而引发拒绝服务。

AI Predicted 5.3 Difficulty: Moderate EPSS 0.30% · P21

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 3

VendorProduct Version RangeStatus
Rockwell Automation CompactLogix, ControlLogix Versions prior to 34.016 affected
Versions prior to 35.015 affected
Versions prior to 36.012 affected
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I. Basic Information for CVE-2026-11317

Vulnerability Information
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Vulnerability Title
Rockwell Automation Logix 5370 and 5570 Controllers Vulnerable To Denial of Service Via CIP
Source: CVE Program / CVE List V5
Vulnerability Description
A denial of service security issue exists in the affected product. The security issue stems from a fault occurring when a crafted CIP message is sent. Devices with less memory are more likely to be affected. This can result in a major nonrecoverable fault (MNRF). A program download is required 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
不恰当的资源关闭或释放
Source: CVE Program / CVE List V5
Vulnerability Title
Rockwell Automation CompactLogix 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Rockwell Automation CompactLogix是美国Rockwell Automation基金会的一款可编程自动化控制器。 Rockwell Automation CompactLogix 存在资源管理错误漏洞，该漏洞源于发送特制CIP消息时出现错误，可能导致主要不可恢复故障，从而引发拒绝服务。
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 CompactLogix, ControlLogix Versions prior to 34.016 -

II. Public POCs for CVE-2026-11317

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-11317

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Vendor Advisories for CVE-2026-11317 (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-2026-0646 Rockwell Automation FLEX I/O Dual-port EtherNet/IP Adapters – Multiple Vulnerabilities
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 vendor: Rockwell Automation
Same weakness: CWE-404

V. Comments for CVE-2026-11317

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