CVE-2025-7731

highpriority · track · 0OT risk · elevatedEPSS 0.003 · 28 %ileEUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.34% (28th) EPSS
CVSS 7.5 · high
Is it mine?
225 products
Check your exposure
Who says so?
3 sources
cnnvd · enisa_euvd · cisa_csaf_ot

EPSS · scored 2026-10-27

Cleartext Transmission of Sensitive Information vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series CPU module allows a remote unauthenticated attacker to obtain credential information by intercepting SLMP communication messages, and read or write the device values of the product and stop the operations of programs by using the obtained credential information.

01

remediations

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

No vendor fix yet; a mitigation is available.

  • MitigationMELSEC iQ-F Series FX5S-30MR/DScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5S-30MR/EScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5S-30MT/DScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5S-30MT/DSScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5S-30MT/EScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5S-30MT/ESScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5S-40MR/DScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5S-40MR/EScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5S-40MT/DScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5S-40MT/DSScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5S-40MT/EScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5S-40MT/ESScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5S-60MR/DScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5S-60MR/EScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5S-60MT/DScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5S-60MT/DSScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5S-60MT/EScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5S-60MT/ESScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5S-80MR/DScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5S-80MR/EScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5S-80MT/DScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5S-80MT/DSScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5S-80MT/EScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5S-80MT/ESScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5U-32MR/DScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5U-32MR/EScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5U-32MT/DScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5U-32MT/DSScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5U-32MT/EScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5U-32MT/ESScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5U-64MR/DScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5U-64MR/EScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5U-64MT/DScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5U-64MT/DSScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5U-64MT/EScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5U-64MT/ESScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5U-80MR/DScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5U-80MR/EScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5U-80MT/DScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5U-80MT/DSScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5U-80MT/EScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5U-80MT/ESScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5UC-32MR/DS-TScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5UC-32MT/Dcisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5UC-32MT/DS-TScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5UC-32MT/DSScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5UC-32MT/DSS-TScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5UC-64MT/Dcisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5UC-64MT/DSScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5UC-96MT/Dcisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5UC-96MT/DSScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5UJ-24MR/DScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5UJ-24MR/EScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5UJ-24MR/ES-Acisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5UJ-24MT/DScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5UJ-24MT/DSScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5UJ-24MT/EScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5UJ-24MT/ES-Acisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5UJ-24MT/ESScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5UJ-40MR/DScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5UJ-40MR/EScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5UJ-40MR/ES-Acisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5UJ-40MT/DScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5UJ-40MT/DSScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5UJ-40MT/EScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5UJ-40MT/ES-Acisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5UJ-40MT/ESScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5UJ-60MR/DScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5UJ-60MR/EScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5UJ-60MR/ES-Acisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5UJ-60MT/DScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5UJ-60MT/DSScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5UJ-60MT/EScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5UJ-60MT/ES-Acisa_csaf_ot

    Mitsubishi Electric Corporation advises 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 FX5UJ-60MT/ESScisa_csaf_ot

    Mitsubishi Electric Corporation advises 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:

02

cvss

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

7.5
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · CISA US
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · ENISA EU
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jpexploitability 3.9 · impact 3.6
v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)
03

ssvc

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

Trackcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-319USCWE-319US
05

affected products (225)

Products and version ranges known to be affected.

showing 20 of 225
06

advisories (1)

Vendor and ecosystem advisories describing this.

  • ICSA-25-240-02Mitsubishi Electric MELSEC iQ-F Series CPU Module2025-08-28icsa · cisa_csaf_otUS

    Successful exploitation of this vulnerability could allow an attacker the ability to obtain credential information by intercepting SLMP communication messages, and read or write the device values of the product by using the obtained credential information. In addition, the attacker may be able to stop the operations of programs.

07

also known as (2)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdcisa_csaf_otNVDCVE.orgMITRE
published 2025-09-01modified 2026-06-17
09

references (11)

External citations — patches, advisories, analysis.

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