CVE-2025-5241

mediumpriority · track · 0EPSS 0.004 · 39 %ileEURUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.45% (39th) EPSS
CVSS 5.3 · medium
Is it mine?
292 products
Check your exposure
Who says so?
4 sources
cnnvd · enisa_euvd · fstec_bdu · cisa_csaf_ot

EPSS · scored 2026-10-27

Overly Restrictive Account Lockout Mechanism vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series allows a remote unauthenticated attacker to lockout legitimate users for a certain period by repeatedly attempting to login with incorrect passwords. The legitimate users will be unable to login until a certain period has passed after the lockout or until the product is reset.

01

remediations

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

No vendor fix yet; a mitigation is available.

  • MitigationFX5-CCLGN-MScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5S-30MR/DScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5S-30MR/EScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5S-30MT/DScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5S-30MT/DSScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5S-30MT/EScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5S-30MT/ESScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5S-40MR/DScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5S-40MR/EScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5S-40MT/DScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5S-40MT/DSScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5S-40MT/EScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5S-40MT/ESScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5S-60MR/DScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5S-60MR/EScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5S-60MT/DScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5S-60MT/DSScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5S-60MT/EScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5S-60MT/ESScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5S-80MR/EScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5S-80MT/EScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5S-80MT/ESScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5U-32MR/DScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5U-32MR/EScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5U-32MT/DScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5U-32MT/DSScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5U-32MT/EScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5U-32MT/ESScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5U-64MR/DScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5U-64MR/EScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5U-64MT/DScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5U-64MT/DSScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5U-64MT/EScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5U-64MT/ESScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5U-80MR/DScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5U-80MR/EScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5U-80MT/DScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5U-80MT/DSScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5U-80MT/EScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5U-80MT/ESScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5UC-32MR/DS-TScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5UC-32MT/Dcisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5UC-32MT/DS-TScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5UC-32MT/DSScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5UC-32MT/DSS-TScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5UC-64MT/Dcisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5UC-64MT/DSScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5UC-96MT/Dcisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5UC-96MT/DSScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5UJ-24MR/DScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5UJ-24MR/EScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5UJ-24MR/ES-Acisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5UJ-24MT/DScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5UJ-24MT/DSScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5UJ-24MT/EScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5UJ-24MT/ES-Acisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5UJ-24MT/ESScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5UJ-40MR/DScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5UJ-40MR/EScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5UJ-40MR/ES-Acisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5UJ-40MT/DScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5UJ-40MT/DSScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5UJ-40MT/EScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5UJ-40MT/ES-Acisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5UJ-40MT/ESScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5UJ-60MR/DScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5UJ-60MR/EScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5UJ-60MR/ES-Acisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5UJ-60MT/DScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5UJ-60MT/DSScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5UJ-60MT/EScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5UJ-60MT/ES-Acisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

  • MitigationFX5UJ-60MT/ESScisa_csaf_ot

    "13.1 IP Filter Function" in the MELSEC iQ-F FX5 User's Manual (Communication)

02

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
v3.15.3mediumAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Lsecondary · FSTEC (BDU) RU
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)
03

ssvc

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

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-645USCWE-645USCWE-645US
05

affected products (292)

Products and version ranges known to be affected.

showing 20 of 292
06

advisories (1)

Vendor and ecosystem advisories describing this.

  • ICSA-25-184-04Mitsubishi Electric MELSEC iQ-F Series2025-07-03icsa · cisa_csaf_otUS

    Successful exploitation of this vulnerability could result in a denial-of-service condition for legitimate users for a certain period by repeatedly attempting to log in with incorrect passwords. When the product repeatedly receives unauthorized logins from an attacker, legitimate users will be unable to be authenticated until a certain period has passed after the lockout or until the product is reset.

07

also known as (4)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducisa_csaf_otNVDCVE.orgMITRE
published 2025-07-11modified 2026-06-17
09

references (8)

External citations — patches, advisories, analysis.

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