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CVE-2020-5594

Quick assessment

Affected
Mitsubishi Electric Corporation MELSEC iQ-R, iQ-F, Q, L, and FX series CPU modules
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.

Misubishi Electric MELSEC iQ-R series等都是日本三菱电机（Misubishi Electric）公司的一款可编程逻辑控制器。 多款Mitsubishi Electric产品中存在安全漏洞，该漏洞源于CPU模块与GX Works3或GX Works2之间采用明文通信。攻击者可利用该漏洞窃听/篡改通信数据，执行未授权的操作，造成拒绝服务。以下产品及版本受到影响：Mitsubishi Electric MELSEC iQ-R系列；MELSEC iQ-F系列；MELSEC Q系

AI Predicted 5.3 Difficulty: Moderate EPSS 1.30% · P68

Possible ATT&CK Techniques 1 AI

T1042
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I. Basic Information for CVE-2020-5594

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Mitsubishi Electric MELSEC iQ-R, iQ-F, Q, L, and FX series CPU modules all versions contain a vulnerability that allows cleartext transmission of sensitive information between CPU modules and GX Works3 and/or GX Works2 via unspecified vectors.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
多款Misubishi Electric产品安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Misubishi Electric MELSEC iQ-R series等都是日本三菱电机（Misubishi Electric）公司的一款可编程逻辑控制器。 多款Mitsubishi Electric产品中存在安全漏洞，该漏洞源于CPU模块与GX Works3或GX Works2之间采用明文通信。攻击者可利用该漏洞窃听/篡改通信数据，执行未授权的操作，造成拒绝服务。以下产品及版本受到影响：Mitsubishi Electric MELSEC iQ-R系列；MELSEC iQ-F系列；MELSEC Q系
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
Mitsubishi Electric Corporation MELSEC iQ-R, iQ-F, Q, L, and FX series CPU modules all versions -

II. Public POCs for CVE-2020-5594

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2020-5594

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Vendor Advisories for CVE-2020-5594 (1)

Other References for CVE-2020-5594 (2)

IV. Related Vulnerabilities

Same vendor: Mitsubishi Electric Corporation

V. Comments for CVE-2020-5594

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