CVE-2020-5545
Quick assessment
Affected
Mitsubishi Electric Corporation Mitsubishi Electric MELQIC IU1 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.
Mitsubishi Electric MELQIC IU1是日本三菱电机（Mitsubishi）公司的一款IU1系列数据收集分析仪。 使用1.0.7及之前版本固件的Mitsubishi Electric MELQIC IU1 IU1-1M20-D中的TCP功能存在访问控制错误漏洞。攻击者可借助特制的数据包利用该漏洞绕过访问限制，造成网络功能终止或执行恶意软件。
Possible ATT&CK Techniques 3 AI
T1059 · Command and Scripting Interpreter T1190 · Exploit Public-Facing Application T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2020-5545
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
TCP function included in the firmware of Mitsubishi Electric MELQIC IU1 series IU1-1M20-D firmware version 1.0.7 and earlier allows remote attackers to bypass access restriction and to stop the network functions or execute malware via a specially crafted 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
Mitsubishi Electric MELQIC IU1 TCP功能访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mitsubishi Electric MELQIC IU1是日本三菱电机（Mitsubishi）公司的一款IU1系列数据收集分析仪。 使用1.0.7及之前版本固件的Mitsubishi Electric MELQIC IU1 IU1-1M20-D中的TCP功能存在访问控制错误漏洞。攻击者可借助特制的数据包利用该漏洞绕过访问限制，造成网络功能终止或执行恶意软件。
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 | Mitsubishi Electric MELQIC IU1 series | IU1-1M20-D firmware version 1.0.7 and earlier | - |
|
II. Public POCs for CVE-2020-5545
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2020-5545 (1)
-
https://jvn.jp/en/vu/JVNVU92370624/index.html x_refsource_MISC
Other References for CVE-2020-5545 (1)
Same Patch Batch · Mitsubishi Electric Corporation · 2020-03-16 · 6 CVEs total
| CVE-2020-5542 | Mitsubishi Electric MELQIC IU1 TCP功能缓冲区错误漏洞 | |
| CVE-2020-5543 | Mitsubishi Electric MELQIC IU1 TCP功能授权问题漏洞 | |
| CVE-2020-5544 | Mitsubishi Electric MELQIC IU1 TCP功能代码问题漏洞 | |
| CVE-2020-5546 | Mitsubishi Electric MELQIC IU1 TCP功能参数注入漏洞 | |
| CVE-2020-5547 | Mitsubishi Electric MELQIC IU1 TCP功能输入验证错误漏洞 |
IV. Related Vulnerabilities
Same product: Mitsubishi Electric MELQIC IU1 series
Same vendor: Mitsubishi Electric Corporation
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CVE-2026-5667
Information Disclosure, Information Tampering, or Denial-of- -
CVE-2025-14816
Information Disclosure, Tampering, and Denial-of-Service Vul
V. Comments for CVE-2020-5545
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