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Fencer Intel
high 7.3

CVE-2025-7405 json

Information Disclosure, Information Tampering, and Denial of Service (DoS) Vulnerability in MELSEC iQ-F Series CPU module

published last yr. modified 4mo ago also EUVD-2025-26324

cvss
7.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 41%
public exploits
0
none known

Summary

Missing Authentication for Critical Function vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series CPU module allows a remote unauthenticated attacker to read or write the device values of the product and stop the operation of the programs, since MODBUS/TCP in the products does not have authentication features.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-25-240-01 updated cvss 7.3

Mitsubishi Electric MELSEC iQ-F Series CPU Module

  • Mitsubishi Electric MELSEC iQ-F Series 'FX5UJ-40MR/DS Mitsubishi Electric MELSEC iQ-F Series FX5S-30MR/DS Mitsubishi Electric MELSEC iQ-F Series FX5S-30MR/ES Mitsubishi Electric MELSEC iQ-F Series FX5S-30MT/DS Mitsubishi Electric MELSEC iQ-F Series FX5S-30MT/DSS Mitsubishi Electric MELSEC iQ-F Series FX5S-30MT/ES
    +34 more products
    Mitsubishi Electric MELSEC iQ-F Series FX5S-30MT/ESS Mitsubishi Electric MELSEC iQ-F Series FX5S-40MR/DS Mitsubishi Electric MELSEC iQ-F Series FX5S-40MR/ES Mitsubishi Electric MELSEC iQ-F Series FX5S-40MT/DS Mitsubishi Electric MELSEC iQ-F Series FX5S-40MT/DSS Mitsubishi Electric MELSEC iQ-F Series FX5S-40MT/ES Mitsubishi Electric MELSEC iQ-F Series FX5S-40MT/ESS Mitsubishi Electric MELSEC iQ-F Series FX5S-60MR/DS Mitsubishi Electric MELSEC iQ-F Series FX5S-60MR/ES Mitsubishi Electric MELSEC iQ-F Series FX5S-60MT/DS Mitsubishi Electric MELSEC iQ-F Series FX5S-60MT/DSS Mitsubishi Electric MELSEC iQ-F Series FX5S-60MT/ES Mitsubishi Electric MELSEC iQ-F Series FX5S-60MT/ESS Mitsubishi Electric MELSEC iQ-F Series FX5S-80MR/DS Mitsubishi Electric MELSEC iQ-F Series FX5S-80MR/ES Mitsubishi Electric MELSEC iQ-F Series FX5S-80MT/DS Mitsubishi Electric MELSEC iQ-F Series FX5S-80MT/DSS Mitsubishi Electric MELSEC iQ-F Series FX5S-80MT/ES Mitsubishi Electric MELSEC iQ-F Series FX5S-80MT/ESS Mitsubishi Electric MELSEC iQ-F Series FX5U-32MR/DS >=1.060 Mitsubishi Electric MELSEC iQ-F Series FX5U-32MR/ES >=1.060 Mitsubishi Electric MELSEC iQ-F Series FX5U-32MT/DS >=1.060 Mitsubishi Electric MELSEC iQ-F Series FX5U-32MT/DSS >=1.060 Mitsubishi Electric MELSEC iQ-F Series FX5U-32MT/ES >=1.060 Mitsubishi Electric MELSEC iQ-F Series FX5U-32MT/ESS >=1.060 Mitsubishi Electric MELSEC iQ-F Series FX5U-64MR/DS >=1.060 Mitsubishi Electric MELSEC iQ-F Series FX5U-64MR/ES >=1.060 Mitsubishi Electric MELSEC iQ-F Series FX5U-64MT/DS >=1.060 Mitsubishi Electric MELSEC iQ-F Series FX5U-64MT/DSS >=1.060 Mitsubishi Electric MELSEC iQ-F Series FX5U-64MT/ES >=1.060 Mitsubishi Electric MELSEC iQ-F Series FX5U-64MT/ESS >=1.060 Mitsubishi Electric MELSEC iQ-F Series FX5U-80MR/DS >=1.060 Mitsubishi Electric MELSEC iQ-F Series FX5U-80MR/ES >=1.060 Mitsubishi Electric MELSEC iQ-F Series FX5U-80MT/DS >=1.060
    affected: mitigation “Use a firewall or virtual private network (VPN), etc. to prevent unauthorized access when internet access is required.” mitsubishielectric.com

35 more affected in the full advisory

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
last yr.

Exploit prediction

0.48% chance of exploitation in the next 30 days, higher than 41% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 7.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Affected products

  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-32MT/ES
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-32MT/DS
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-32MT/ESS
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-32MT/DSS
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-32MR/ES
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-32MR/DS
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-64MT/ES
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-64MT/DS
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-64MT/ESS
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-64MT/DSS
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-64MR/ES
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-64MR/DS
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-80MT/ES
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-80MT/DS
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-80MT/ESS
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-80MT/DSS
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-80MR/ES
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-80MR/DS
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UC-32MT/D
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UC-32MT/DSS
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UC-64MT/D
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UC-64MT/DSS
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UC-96MT/D
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UC-96MT/DSS
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UC-32MT/DS-TS
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UC-32MT/DSS-TS
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UC-32MR/DS-TS
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-24MT/ES
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-24MT/DS
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-24MT/ESS
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-24MT/DSS
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-24MR/ES
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-24MR/DS
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-40MT/ES
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-40MT/DS
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-40MT/ESS
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-40MT/DSS
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-40MR/ES
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-40MR/DS
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-60MT/ES
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-60MT/DS
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-60MT/ESS
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-60MT/DSS
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-60MR/ES
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-60MR/DS
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-24MT/ES-A
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-24MR/ES-A
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-40MT/ES-A
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-40MR/ES-A
  • Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-60MT/ES-A

Classification

Weakness
  • CWE-306 Missing Authentication for Critical Functionality

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.