CVE-2025-8531
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I. Basic Information for CVE-2025-8531
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
Improper Handling of Length Parameter Inconsistency vulnerability in Mitsubishi Electric Corporation MELSEC-Q Series Q03UDVCPU, Q04UDVCPU, Q06UDVCPU, Q13UDVCPU, Q26UDVCPU, Q04UDPVCPU, Q06UDPVCPU, Q13UDPVCPU, and Q26UDPVCPU with the first 5 digits of serial No. "24082" to "27081" allows a remote attacker to cause an integer underflow by sending specially crafted packets to the affected product to stop Ethernet communication and the execution of control programs on the product, when the user authentication function is enabled. The user authentication function is enabled by default only when settings are configured by GX Works2, which complies with the Cybersecurity Law of the People's Republic of China, and is normally disabled.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
长度参数不一致性处理不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Mitsubishi Electric MELSEC-Q Series 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mitsubishi Electric MELSEC-Q Series是日本三菱电机（Mitsubishi Electric）公司的一系列可编程逻辑控制器。 Mitsubishi Electric MELSEC-Q Series存在安全漏洞，该漏洞源于长度参数处理不当，可能导致整数下溢，进而导致以太网通信中断和控制程序停止执行。
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-Q Series Q03UDVCPU | The first 5 digits of serial No. "24082" to "27081" | - | |
| Mitsubishi Electric Corporation | MELSEC-Q Series Q04UDVCPU | The first 5 digits of serial No. "24082" to "27081" | - | |
| Mitsubishi Electric Corporation | MELSEC-Q Series Q06UDVCPU | The first 5 digits of serial No. "24082" to "27081" | - | |
| Mitsubishi Electric Corporation | MELSEC-Q Series Q13UDVCPU | The first 5 digits of serial No. "24082" to "27081" | - | |
| Mitsubishi Electric Corporation | MELSEC-Q Series Q26UDVCPU | The first 5 digits of serial No. "24082" to "27081" | - | |
| Mitsubishi Electric Corporation | MELSEC-Q Series Q04UDPVCPU | The first 5 digits of serial No. "24082" to "27081" | - | |
| Mitsubishi Electric Corporation | MELSEC-Q Series Q06UDPVCPU | The first 5 digits of serial No. "24082" to "27081" | - | |
| Mitsubishi Electric Corporation | MELSEC-Q Series Q13UDPVCPU | The first 5 digits of serial No. "24082" to "27081" | - | |
| Mitsubishi Electric Corporation | MELSEC-Q Series Q26UDPVCPU | The first 5 digits of serial No. "24082" to "27081" | - |
II. Public POCs for CVE-2025-8531
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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
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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-130
- CVE-2026-5766
Potential denial-of-service vulnerability in ASGI requests v - CVE-2026-33846
Gnutls: gnutls: denial of service via heap buffer overflow i - CVE-2026-3868
Moxa EDR-8010 Series和Moxa EDR-G9010 Series 安全漏洞 - CVE-2026-5265
Ovn: ovn: heap over-read in icmp error response generation - - CVE-2026-5367
Ovn: ovn: information disclosure via crafted dhcpv6 packets
V. Comments for CVE-2025-8531
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