CVE-2022-40265— Denial of Service (DoS) Vulnerability in MELSEC iQ-R Series Ethernet Interface Module
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I. Basic Information for CVE-2022-40265
Vulnerability Information
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Vulnerability Title
Denial of Service (DoS) Vulnerability in MELSEC iQ-R Series Ethernet Interface Module
Source: NVD (National Vulnerability Database)
Vulnerability Description
Improper Input Validation vulnerability in Mitsubishi Electric Corporation MELSEC iQ-R Series RJ71EN71 Firmware version "65" and prior and Mitsubishi Electric Corporation MELSEC iQ-R Series R04/08/16/32/120ENCPU Network Part Firmware version "65" and prior allows a remote unauthenticated attacker to cause a Denial of Service condition by sending specially crafted packets. A system reset is required for recovery.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
输入验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Mitsubishi Electric MELSEC iQ-R series 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mitsubishi Electric MELSEC iQ-R series是日本三菱电机（Mitsubishi Electric）公司的一款可编程逻辑控制器。 MELSEC iQ-R Series RJ71EN71 固件版本65及之前版本和MELSEC iQ-R Series R04/08/16/32/120ENCPU固件版本65及之前版本存在安全漏洞，该漏洞源于存在不当输入验证，允许远程未经身份验证的攻击者通过发送特制数据包造成拒绝服务。
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 Series RJ71EN71 | Firmware version "65" and prior | - | |
| Mitsubishi Electric Corporation | MELSEC iQ-R Series R04/08/16/32/120ENCPU | Network Part Firmware version "65" and prior | - |
II. Public POCs for CVE-2022-40265
| # | POC Description | Source Link | Shenlong Link |
|---|
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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
Same weakness: CWE-20
V. Comments for CVE-2022-40265
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