CVE-2025-3755— Information Disclosure and Denial-of-Service(DoS) Vulnerability in MELSEC iQ-F Series CPU module
Quick assessment
Affected
Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-32MT/ES
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 MELSEC iQ-F series是日本三菱电机（Mitsubishi Electric）公司的一款可编程逻辑控制器。 Mitsubishi Electric MELSEC iQ-F series存在安全漏洞，该漏洞源于输入验证不足，可能导致拒绝服务或CPU模块停止运行。
Possible ATT&CK Techniques 2 AI
T1190 · Exploit Public-Facing Application T1499 · Endpoint Denial of Service
Get alerts for future matching vulnerabilities
Log in to subscribe
I. Basic Information for CVE-2025-3755
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗
Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
Information Disclosure and Denial-of-Service(DoS) Vulnerability in MELSEC iQ-F Series CPU module
Source: CVE Program / CVE List V5
Vulnerability Description
Improper Validation of Specified Index, Position, or Offset in Input vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series CPU modules allows a remote unauthenticated attacker to read information in the product, to cause a Denial-of-Service (DoS) condition in MELSOFT connection, or to stop the operation of the CPU module (causing a DoS condtion on the CPU module), by sending specially crafted packets. The product is needed to reset for recovery.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1285
Source: CVE Program / CVE List V5
Vulnerability Title
Mitsubishi Electric MELSEC iQ-F series 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mitsubishi Electric MELSEC iQ-F series是日本三菱电机（Mitsubishi Electric）公司的一款可编程逻辑控制器。 Mitsubishi Electric MELSEC iQ-F series存在安全漏洞，该漏洞源于输入验证不足，可能导致拒绝服务或CPU模块停止运行。
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)
Shenlong Deep Dive — AI Deep Analysis
10-question deep dive: root cause, exploitation, mitigation, urgency. Read summary free, full version requires login.
Affected Products
II. Public POCs for CVE-2025-3755
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2025-3755
请登录查看更多情报信息。
Vendor Advisories for CVE-2025-3755 (1)
IV. Related Vulnerabilities
Same product: MELSEC iQ-F Series FX5U-32MT/ES
-
CVE-2025-10259
Denial-of-Service(DoS) Vulnerability in TCP Communication Fu -
CVE-2025-7731
Information Disclosure Vulnerability in MELSEC iQ-F Series C -
CVE-2025-7405
Information Disclosure, Information Tampering, and Denial of -
CVE-2025-5514
Denial-of-Service(DoS) Vulnerability in Web server function -
CVE-2025-5241
Denial-of-Service Vulnerability in MELSEC iQ-F Series
Same vendor: Mitsubishi Electric Corporation
-
CVE-2026-16438
An arbitrary operation vulnerability in GENESIS64, ICONICS S -
CVE-2026-16437
An authentication bypass vulnerability in GENESIS, GENESIS64 -
CVE-2026-16436
An authentication bypass vulnerability in GENESIS, GENESIS64 -
CVE-2026-15688
Password Authentication Bypass Vulnerability in GX Works3 an -
CVE-2026-13584
Information tampering and Denial-of-service (DoS) vulnerabil
V. Comments for CVE-2025-3755
No comments yet