CVE-2020-5652
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I. Basic Information for CVE-2020-5652
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
Uncontrolled resource consumption vulnerability in Ethernet Port on MELSEC iQ-R, Q and L series CPU modules (R 00/01/02 CPU firmware versions '20' and earlier, R 04/08/16/32/120 (EN) CPU firmware versions '52' and earlier, R 08/16/32/120 SFCPU firmware versions '22' and earlier, R 08/16/32/120 PCPU all versions, R 08/16/32/120 PSFCPU all versions, R 16/32/64 MTCPU all versions, Q03 UDECPU, Q 04/06/10/13/20/26/50/100 UDEHCPU serial number '22081' and earlier , Q 03/04/06/13/26 UDVCPU serial number '22031' and earlier, Q 04/06/13/26 UDPVCPU serial number '22031' and earlier, Q 172/173 DCPU all versions, Q 172/173 DSCPU all versions, Q 170 MCPU all versions, Q 170 MSCPU all versions, L 02/06/26 CPU (-P) and L 26 CPU - (P) BT all versions) allows a remote unauthenticated attacker to stop the Ethernet communication functions of the products via a specially crafted packet, which may lead to a denial of service (DoS) condition .
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
多款Mitsubishi Electric产品资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mitsubishi Electric MELSEC-Q Series等都是日本三菱电机（Mitsubishi Electric）公司的产品。MELSEC-Q Series是一款MELSEC-Q系列的可编程逻辑控制器。MELSEC-L Series是一款MELSEC-L系列的可编程逻辑控制器。MELSEC iQ-R series是一款可编程逻辑控制器。 MELSEC iQ-R Series 存在资源管理错误漏洞，该漏洞源于当 CPU 模块从恶意攻击者那里接收到一个特制的数据包时，以太网通信可能进入拒绝服务
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-R, Q and L series | R 00/01/02 CPU firmware versions '20' and earlier, R 04/08/16/32/120 (EN) CPU firmware versions '52' and earlier, R 08/16/32/120 SFCPU firmware versions '22' and earlier, R 08/16/32/120 PCPU all versions, R 08/16/32/120 PSFCPU all versions, R 16/32/64 MTC | - |
II. Public POCs for CVE-2020-5652
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|---|
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- https://jvn.jp/vu/JVNVU96558207/index.htmlx_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2020-5652
Same Patch Batch · Mitsubishi Electric Corporation · 2020-10-30 · 7 CVEs total
| CVE-2020-5657 | 多款Mitsubishi Electric产品参数注入漏洞 | |
| CVE-2020-5658 | 多款Mitsubishi Electric产品资源管理错误漏洞 | |
| CVE-2020-5655 | 多款Mitsubishi Electric产品代码问题漏洞 | |
| CVE-2020-5656 | 多款Mitsubishi Electric产品安全漏洞 | |
| CVE-2020-5653 | 多款Mitsubishi Electric产品安全漏洞 | |
| CVE-2020-5654 | 多款Mitsubishi Electric产品授权问题漏洞 |
IV. Related Vulnerabilities
Same vendor: Mitsubishi Electric Corporation
- CVE-2025-14816
Information Disclosure, Tampering, and Denial-of-Service Vul - CVE-2025-14815
Information Disclosure, Tampering, and Denial-of-Service Vul - CVE-2025-2399
Denial of Service (DoS) Vulnerability in Mitsubishi Electric - CVE-2026-1876
Denial-of-Service (DoS) vulnerability in Ethernet function o - CVE-2026-1875
Denial-of-Service (DoS) vulnerability in Ethernet function o
V. Comments for CVE-2020-5652
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