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CVE-2020-5527

Quick assessment

Affected
Mitsubishi Electric Corporation MELSOFT transmission port (UDP/IP) of multiple Mitsubishi Electric MELSEC series
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产品存在资源管理错误漏洞。攻击者可通过向MELSOFT传输端口（UDP/IP）发送大量数据利用该漏洞造成拒绝服务。以下产品及版本受到影响： MELSEC iQ-R series（所有版本）；MELSEC iQ-F series（所有版本）；MELSEC Q series（所有版本）；MELSEC L se

AI Predicted 7.5 Difficulty: Easy EPSS 1.36% · P71
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I. Basic Information for CVE-2020-5527

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
When MELSOFT transmission port (UDP/IP) of Mitsubishi Electric MELSEC iQ-R series (all versions), MELSEC iQ-F series (all versions), MELSEC Q series (all versions), MELSEC L series (all versions), and MELSEC F series (all versions) receives massive amount of data via unspecified vectors, resource consumption occurs and the port does not process the data properly. As a result, it may fall into a denial-of-service (DoS) condition. The vendor states this vulnerability only affects Ethernet communication functions.
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Mitsubishi Electric产品资源管理错误漏洞
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产品存在资源管理错误漏洞。攻击者可通过向MELSOFT传输端口（UDP/IP）发送大量数据利用该漏洞造成拒绝服务。以下产品及版本受到影响： MELSEC iQ-R series（所有版本）；MELSEC iQ-F series（所有版本）；MELSEC Q series（所有版本）；MELSEC L se
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 MELSOFT transmission port (UDP/IP) of multiple Mitsubishi Electric MELSEC series MELSEC iQ-R series (all versions), MELSEC iQ-F series (all versions), MELSEC Q series (all versions), MELSEC L series (all versions), and MELSEC F series (all versions) -

II. Public POCs for CVE-2020-5527

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III. Intelligence Information for CVE-2020-5527

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Vendor Advisories for CVE-2020-5527 (1)

Other References for CVE-2020-5527 (1)

IV. Related Vulnerabilities

Same vendor: Mitsubishi Electric Corporation

V. Comments for CVE-2020-5527

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