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CVE-2020-5665

Quick assessment

Affected
Mitsubishi Electric Corporation MELSEC iQ-F series FX5U(C) CPU unit
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-F series是日本三菱电机（Misubishi Electric）公司的一款可编程逻辑控制器。 MELSEC iQ-F 系列产品存在安全漏洞，该漏洞源于系统对异常情况的不当检查或处理，攻击者利用该漏洞使设备拒绝服务。

AI Predicted 5.9 Difficulty: Moderate EPSS 1.03% · P62

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2020-5665

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Improper check or handling of exceptional conditions in MELSEC iQ-F series FX5U(C) CPU unit firmware version 1.060 and earlier allows an attacker to cause a denial-of-service (DoS) condition on program execution and communication by sending a specially crafted ARP packet.
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
Misubishi Electric MELSEC iQ-F series 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Misubishi Electric MELSEC iQ-F series是日本三菱电机（Misubishi Electric）公司的一款可编程逻辑控制器。 MELSEC iQ-F 系列产品存在安全漏洞，该漏洞源于系统对异常情况的不当检查或处理，攻击者利用该漏洞使设备拒绝服务。
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
Mitsubishi Electric Corporation MELSEC iQ-F series FX5U(C) CPU unit firmware version 1.060 and earlier -

II. Public POCs for CVE-2020-5665

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III. Intelligence Information for CVE-2020-5665

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Vendor Advisories for CVE-2020-5665 (2)

Other References for CVE-2020-5665 (2)

IV. Related Vulnerabilities

Same vendor: Mitsubishi Electric Corporation

V. Comments for CVE-2020-5665

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