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Vulnerability · Published Sep 1, 2025 · Assigned by Mitsubishi

CVE-2025-7405Information Disclosure, Information Tampering, and Denial of Service (DoS) Vulnerability in MELSEC iQ-F Series CPU module

High 7.3

In plain English

A high-severity missing authentication in MELSEC iQ-F Series FX5S-30MR/ES from Mitsubishi Electric Corporation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 41% of all known vulnerabilities).

Severity (CVSS 3.1)7.3High
Exploit odds (30 days)0.5%top 58.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

VendorProductVersions
Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-32MT/ES 1.060 and later
Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-32MT/DS 1.060 and later
Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-32MT/ESS 1.060 and later
Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-32MT/DSS 1.060 and later
Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-32MR/ES 1.060 and later
Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-32MR/DS 1.060 and later
Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-64MT/ES 1.060 and later
Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-64MT/DS 1.060 and later
Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-64MT/ESS 1.060 and later
Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-64MT/DSS 1.060 and later
Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-64MR/ES 1.060 and later
Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-64MR/DS 1.060 and later
Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-80MT/ES 1.060 and later
Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-80MT/DS 1.060 and later
Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-80MT/ESS 1.060 and later
Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-80MT/DSS 1.060 and later
Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-80MR/ES 1.060 and later
Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-80MR/DS 1.060 and later
Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UC-32MT/D 1.060 and later
Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UC-32MT/DSS 1.060 and later
Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UC-64MT/D 1.060 and later
Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UC-64MT/DSS 1.060 and later
Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UC-96MT/D 1.060 and later
Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UC-96MT/DSS 1.060 and later
Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UC-32MT/DS-TS 1.060 and later
Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UC-32MT/DSS-TS 1.060 and later
Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UC-32MR/DS-TS 1.060 and later
Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-24MT/ES All versions
Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-24MT/DS All versions
Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-24MT/ESS All versions

Weakness: CWE-306 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

References