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CVE-2026-9307— Rockwell Automation CompactLogix 5370 Controllers – Multiple Vulnerabilities

Quick assessment

Affected
Rockwell Automation CompactLogix 5370
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 5370是美国Rockwell Automation公司的一款可编程自动化控制器。 Rockwell Automation CompactLogix 5370 V36版本存在信息泄露漏洞，该漏洞源于控制器Web服务器在诊断网页上暴露了CIP连接ID，导致任何未经身份验证的网络用户均可访问此信息，攻击者可利用此信息构造恶意数据包，从而导致拒绝服务攻击。

AI Predicted 6.5 Difficulty: Easy EPSS 0.45% · P37

Affected Version Matrix 1

VendorProduct Version RangeStatus
Rockwell Automation CompactLogix 5370 V36 affected
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I. Basic Information for CVE-2026-9307

Vulnerability Information
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Vulnerability Title
Rockwell Automation CompactLogix 5370 Controllers – Multiple Vulnerabilities
Source: CVE Program / CVE List V5
Vulnerability Description
A sensitive information disclosure security issue exists within the affected CompactLogix controllers. The controller's web server exposes CIP Connection IDs on the diagnostics webpage, which are accessible to any unauthenticated user on the network. This information can be leveraged by an attacker to construct malicious packets, leading to Denial-of-Service.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
将系统数据暴露到未授权控制的范围
Source: CVE Program / CVE List V5
Vulnerability Title
Rockwell Automation CompactLogix 5370 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Rockwell Automation CompactLogix 5370是美国Rockwell Automation公司的一款可编程自动化控制器。 Rockwell Automation CompactLogix 5370 V36版本存在信息泄露漏洞，该漏洞源于控制器Web服务器在诊断网页上暴露了CIP连接ID，导致任何未经身份验证的网络用户均可访问此信息，攻击者可利用此信息构造恶意数据包，从而导致拒绝服务攻击。
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 5370 V36 -

II. Public POCs for CVE-2026-9307

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III. Intelligence Information for CVE-2026-9307

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Vendor Advisories for CVE-2026-9307 (1)

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

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CVE-2026-11317 Rockwell Automation Logix 5370 and 5570 Controllers Vulnerable To Denial of Service Via CI
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IV. Related Vulnerabilities

Same product: CompactLogix 5370
Same vendor: Rockwell Automation
Same weakness: CWE-497

V. Comments for CVE-2026-9307

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