CVE-2025-5514

mediumpriority · track · 0EPSS 0.006 · 48 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.59% (48th) EPSS

CVSS 5.3 · medium

Is it mine?

225 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · cisa_csaf_ot

EPSS · scored 2026-10-27

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.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

No vendor fix yet; a mitigation is available.

MitigationMELSEC iQ-F Series CPU module FX5S-30MR/DScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5S-30MR/EScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5S-30MT/DScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5S-30MT/DSScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5S-30MT/EScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5S-30MT/ESScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5S-40MR/DScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5S-40MR/EScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5S-40MT/DScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5S-40MT/DSScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5S-40MT/EScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5S-40MT/ESScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5S-60MR/DScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5S-60MR/EScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5S-60MT/DScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5S-60MT/DSScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5S-60MT/EScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5S-60MT/ESScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5S-80MR/DScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5S-80MR/EScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5S-80MT/DScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5S-80MT/DSScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5S-80MT/EScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5S-80MT/ESScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5U-32MR/DScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5U-32MR/EScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5U-32MT/DScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5U-32MT/DSScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5U-32MT/EScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5U-32MT/ESScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5U-64MR/DScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5U-64MR/EScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5U-64MT/DScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5U-64MT/DSScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5U-64MT/EScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5U-64MT/ESScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5U-80MR/DScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5U-80MR/EScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5U-80MT/DScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5U-80MT/DSScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5U-80MT/EScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5U-80MT/ESScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5UC-32MR/DS-TScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5UC-32MT/Dcisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5UC-32MT/DS-TScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5UC-32MT/DSScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5UC-32MT/DSS-TScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5UC-64MT/Dcisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5UC-64MT/DSScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5UC-96MT/Dcisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5UC-96MT/DSScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5UJ-24MR/DScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5UJ-24MR/EScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5UJ-24MR/ES-Acisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5UJ-24MT/DScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5UJ-24MT/DSScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5UJ-24MT/EScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5UJ-24MT/ES-Acisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5UJ-24MT/ESScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5UJ-40MR/DScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5UJ-40MR/EScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5UJ-40MR/ES-Acisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5UJ-40MT/DScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5UJ-40MT/DSScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5UJ-40MT/EScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5UJ-40MT/ES-Acisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5UJ-40MT/ESScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5UJ-60MR/DScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5UJ-60MR/EScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5UJ-60MR/ES-Acisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5UJ-60MT/DScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5UJ-60MT/DSScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5UJ-60MT/EScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5UJ-60MT/ES-Acisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
MitigationMELSEC iQ-F Series CPU module FX5UJ-60MT/ESScisa_csaf_ot
Mitsubishi Electric Corporation advises that there are no plans to release a fixed version. Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:

cvss

Technical severity, 0–10. One row per scoring source.

5.3

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Lsecondary · CISA US

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Lsecondary · ENISA EU

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Lsecondary · Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jpexploitability 3.9 · impact 1.4

v3.14.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-130USCWE-130US

affected products (225)

Products and version ranges known to be affected.

showing 20 of 225

advisories (1)

Vendor and ecosystem advisories describing this.

ICSA-25-233-01Mitsubishi Electric Corporation MELSEC iQ-F Series CPU module (Update A)2025-08-21icsa · cisa_csaf_otUS
Successful exploitation of this vulnerability could result in a remote attacker being able 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.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cisa_csaf_ot NVD CVE.org MITRE

published 2025-08-25modified 2026-06-17

references (10)

External citations — patches, advisories, analysis.

scry

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