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CVE-2025-5514

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CVE-2025-5514

Published: Aug 25, 2025

Modified: Aug 26, 2025

PUBLISHED

CVSS v3.1

5.3

MEDIUM

Description

Improper Handling of Length Parameter Inconsistency vulnerability in web server function on Mitsubishi Electric Corporation MELSEC iQ-F Series CPU module allows a remote unauthenticated attacker to delay the processing of the web server function and prevent legitimate users from utilizing the web server function, by sending a specially crafted HTTP request.

VendorProductVersions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5U-32MT/ES

affected
1.060 and later

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5U-32MT/DS

affected
1.060 and later

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5U-32MT/ESS

affected
1.060 and later

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5U-32MT/DSS

affected
1.060 and later

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5U-32MR/ES

affected
1.060 and later

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5U-32MR/DS

affected
1.060 and later

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5U-64MT/ES

affected
1.060 and later

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5U-64MT/DS

affected
1.060 and later

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5U-64MT/ESS

affected
1.060 and later

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5U-64MT/DSS

affected
1.060 and later

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5U-64MR/ES

affected
1.060 and later

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5U-64MR/DS

affected
1.060 and later

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5U-80MT/ES

affected
1.060 and later

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5U-80MT/DS

affected
1.060 and later

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5U-80MT/ESS

affected
1.060 and later

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5U-80MT/DSS

affected
1.060 and later

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5U-80MR/ES

affected
1.060 and later

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5U-80MR/DS

affected
1.060 and later

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5UC-32MT/D

affected
1.060 and later

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5UC-32MT/DSS

affected
1.060 and later

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5UC-64MT/D

affected
1.060 and later

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5UC-64MT/DSS

affected
1.060 and later

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5UC-96MT/D

affected
1.060 and later

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5UC-96MT/DSS

affected
1.060 and later

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5UC-32MT/DS-TS

affected
1.060 and later

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5UC-32MT/DSS-TS

affected
1.060 and later

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5UC-32MR/DS-TS

affected
1.060 and later

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5UJ-24MT/ES

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5UJ-24MT/DS

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5UJ-24MT/ESS

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5UJ-24MT/DSS

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5UJ-24MR/ES

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5UJ-24MR/DS

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5UJ-40MT/ES

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5UJ-40MT/DS

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5UJ-40MT/ESS

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5UJ-40MT/DSS

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5UJ-40MR/ES

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5UJ-40MR/DS

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5UJ-60MT/ES

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5UJ-60MT/DS

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5UJ-60MT/ESS

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5UJ-60MT/DSS

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5UJ-60MR/ES

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5UJ-60MR/DS

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5UJ-24MT/ES-A

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5UJ-24MR/ES-A

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5UJ-40MT/ES-A

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5UJ-40MR/ES-A

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5UJ-60MT/ES-A

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5UJ-60MR/ES-A

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5S-30MT/ES

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5S-30MT/ESS

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5S-30MR/ES

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5S-40MT/ES

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5S-40MT/ESS

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5S-40MR/ES

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5S-60MT/ES

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5S-60MT/ESS

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5S-60MR/ES

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5S-80MT/ES

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5S-80MT/ESS

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5S-80MR/ES

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5S-30MT/DS

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5S-30MT/DSS

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5S-30MR/DS

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5S-40MT/DS

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5S-40MT/DSS

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5S-40MR/DS

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5S-60MT/DS

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5S-60MT/DSS

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5S-60MR/DS

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5S-80MT/DS

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5S-80MT/DSS

affected
All versions

Mitsubishi Electric Corporation

MELSEC iQ-F Series FX5S-80MR/DS

affected
All versions

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

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