Mitsubishi Electric MELSEC iQ-F FX5U-32MT-ES Modbus TCP missing authentication

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.2$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Mitsubishi Electric MELSEC iQ-F FX5U-32MT-ES, MELSEC iQ-F FX5U-32MT-DS, MELSEC iQ-F FX5U-32MT-ESS, MELSEC iQ-F FX5U-32MT-DSS, MELSEC iQ-F FX5U-64MT-ES, MELSEC iQ-F FX5U-64MT-DS, MELSEC iQ-F FX5U-64MT-ESS, MELSEC iQ-F FX5U-64MT-DSS, MELSEC iQ-F FX5U-80MT-ES, MELSEC iQ-F FX5U-80MT-DS, MELSEC iQ-F FX5U-80MT-ESS, MELSEC iQ-F FX5U-80MT-DSS, MELSEC iQ-F FX5U-32MR-ES, MELSEC iQ-F FX5U-32MR-DS, MELSEC iQ-F FX5U-64MR-ES, MELSEC iQ-F FX5U-64MR-DS, MELSEC iQ-F FX5U-80MR-ES, MELSEC iQ-F FX5U-80MR-DS, MELSEC iQ-F FX5UC-32MT-D, MELSEC iQ-F FX5UC-32MT-DSS, MELSEC iQ-F FX5UC-64MT-D, MELSEC iQ-F FX5UC-64MT-DSS, MELSEC iQ-F FX5UC-96MT-D, MELSEC iQ-F FX5UC-96MT-DSS, MELSEC iQ-F FX5UC-32MT-DS-TS, MELSEC iQ-F FX5UC-32MT-DSS-TS, MELSEC iQ-F FX5UC-32MR-DS-TS, MELSEC iQ-F FX5UJ-24MT-ES, MELSEC iQ-F FX5UJ-24MT-DS, MELSEC iQ-F FX5UJ-24MT-ESS, MELSEC iQ-F FX5UJ-24MT-DSS, MELSEC iQ-F FX5UJ-40MT-ES, MELSEC iQ-F FX5UJ-40MT-DS, MELSEC iQ-F FX5UJ-40MT-ESS, MELSEC iQ-F FX5UJ-40MT-DSS, MELSEC iQ-F FX5UJ-60MT-ES, MELSEC iQ-F FX5UJ-60MT-DS, MELSEC iQ-F FX5UJ-60MT-ESS, MELSEC iQ-F FX5UJ-60MT-DSS, MELSEC iQ-F FX5UJ-24MR-ES, MELSEC iQ-F FX5UJ-24MR-DS, MELSEC iQ-F FX5UJ-40MR-ES, MELSEC iQ-F 'FX5UJ-40MR-DS, MELSEC iQ-F FX5UJ-60MR-ES, MELSEC iQ-F FX5UJ-60MR-DS, MELSEC iQ-F FX5UJ-24MT-ES-A, MELSEC iQ-F FX5UJ-24MR-ES-A, MELSEC iQ-F FX5UJ-40MT-ES-A, MELSEC iQ-F FX5UJ-40MR-ES-A, MELSEC iQ-F FX5UJ-60MT-ES-A, MELSEC iQ-F FX5UJ-60MR-ES-A, MELSEC iQ-F FX5S-30MT-ES, MELSEC iQ-F FX5S-30MT-DS, MELSEC iQ-F FX5S-30MT-ESS, MELSEC iQ-F FX5S-30MT-DSS, MELSEC iQ-F FX5S-40MT-ES, MELSEC iQ-F FX5S-40MT-DS, MELSEC iQ-F FX5S-40MT-ESS, MELSEC iQ-F FX5S-40MT-DSS, MELSEC iQ-F FX5S-60MT-ES, MELSEC iQ-F FX5S-60MT-DS, MELSEC iQ-F FX5S-60MT-ESS, MELSEC iQ-F FX5S-60MT-DSS, MELSEC iQ-F FX5S-80MT-ES, MELSEC iQ-F FX5S-80MT-DS, MELSEC iQ-F FX5S-80MT-ESS, MELSEC iQ-F FX5S-80MT-DSS, MELSEC iQ-F FX5S-30MR-ES, MELSEC iQ-F FX5S-30MR-DS, MELSEC iQ-F FX5S-40MR-ES, MELSEC iQ-F FX5S-40MR-DS, MELSEC iQ-F FX5S-60MR-ES, MELSEC iQ-F FX5S-60MR-DS, MELSEC iQ-F FX5S-80MR-ES and MELSEC iQ-F FX5S-80MR-DS. Affected is an unknown function of the component Modbus TCP. Such manipulation leads to missing authentication. This vulnerability is listed as CVE-2025-7405. The attack may be performed from remote. There is no available exploit. Restrictive firewalling should be applied.

Detailsinfo

A vulnerability was found in Mitsubishi Electric MELSEC iQ-F FX5U-32MT-ES, MELSEC iQ-F FX5U-32MT-DS, MELSEC iQ-F FX5U-32MT-ESS, MELSEC iQ-F FX5U-32MT-DSS, MELSEC iQ-F FX5U-64MT-ES, MELSEC iQ-F FX5U-64MT-DS, MELSEC iQ-F FX5U-64MT-ESS, MELSEC iQ-F FX5U-64MT-DSS, MELSEC iQ-F FX5U-80MT-ES, MELSEC iQ-F FX5U-80MT-DS, MELSEC iQ-F FX5U-80MT-ESS, MELSEC iQ-F FX5U-80MT-DSS, MELSEC iQ-F FX5U-32MR-ES, MELSEC iQ-F FX5U-32MR-DS, MELSEC iQ-F FX5U-64MR-ES, MELSEC iQ-F FX5U-64MR-DS, MELSEC iQ-F FX5U-80MR-ES, MELSEC iQ-F FX5U-80MR-DS, MELSEC iQ-F FX5UC-32MT-D, MELSEC iQ-F FX5UC-32MT-DSS, MELSEC iQ-F FX5UC-64MT-D, MELSEC iQ-F FX5UC-64MT-DSS, MELSEC iQ-F FX5UC-96MT-D, MELSEC iQ-F FX5UC-96MT-DSS, MELSEC iQ-F FX5UC-32MT-DS-TS, MELSEC iQ-F FX5UC-32MT-DSS-TS, MELSEC iQ-F FX5UC-32MR-DS-TS, MELSEC iQ-F FX5UJ-24MT-ES, MELSEC iQ-F FX5UJ-24MT-DS, MELSEC iQ-F FX5UJ-24MT-ESS, MELSEC iQ-F FX5UJ-24MT-DSS, MELSEC iQ-F FX5UJ-40MT-ES, MELSEC iQ-F FX5UJ-40MT-DS, MELSEC iQ-F FX5UJ-40MT-ESS, MELSEC iQ-F FX5UJ-40MT-DSS, MELSEC iQ-F FX5UJ-60MT-ES, MELSEC iQ-F FX5UJ-60MT-DS, MELSEC iQ-F FX5UJ-60MT-ESS, MELSEC iQ-F FX5UJ-60MT-DSS, MELSEC iQ-F FX5UJ-24MR-ES, MELSEC iQ-F FX5UJ-24MR-DS, MELSEC iQ-F FX5UJ-40MR-ES, MELSEC iQ-F 'FX5UJ-40MR-DS, MELSEC iQ-F FX5UJ-60MR-ES, MELSEC iQ-F FX5UJ-60MR-DS, MELSEC iQ-F FX5UJ-24MT-ES-A, MELSEC iQ-F FX5UJ-24MR-ES-A, MELSEC iQ-F FX5UJ-40MT-ES-A, MELSEC iQ-F FX5UJ-40MR-ES-A, MELSEC iQ-F FX5UJ-60MT-ES-A, MELSEC iQ-F FX5UJ-60MR-ES-A, MELSEC iQ-F FX5S-30MT-ES, MELSEC iQ-F FX5S-30MT-DS, MELSEC iQ-F FX5S-30MT-ESS, MELSEC iQ-F FX5S-30MT-DSS, MELSEC iQ-F FX5S-40MT-ES, MELSEC iQ-F FX5S-40MT-DS, MELSEC iQ-F FX5S-40MT-ESS, MELSEC iQ-F FX5S-40MT-DSS, MELSEC iQ-F FX5S-60MT-ES, MELSEC iQ-F FX5S-60MT-DS, MELSEC iQ-F FX5S-60MT-ESS, MELSEC iQ-F FX5S-60MT-DSS, MELSEC iQ-F FX5S-80MT-ES, MELSEC iQ-F FX5S-80MT-DS, MELSEC iQ-F FX5S-80MT-ESS, MELSEC iQ-F FX5S-80MT-DSS, MELSEC iQ-F FX5S-30MR-ES, MELSEC iQ-F FX5S-30MR-DS, MELSEC iQ-F FX5S-40MR-ES, MELSEC iQ-F FX5S-40MR-DS, MELSEC iQ-F FX5S-60MR-ES, MELSEC iQ-F FX5S-60MR-DS, MELSEC iQ-F FX5S-80MR-ES and MELSEC iQ-F FX5S-80MR-DS. It has been rated as critical. Affected by this issue is some unknown functionality of the component Modbus TCP. The manipulation with an unknown input leads to a missing authentication vulnerability. Using CWE to declare the problem leads to CWE-306. The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at cisa.gov. This vulnerability is handled as CVE-2025-7405. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 09/01/2025).

Addressing this vulnerability is possible by firewalling .

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-26324). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.3
VulDB Temp Score: 7.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.3
CNA Vector: 🔒

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Missing authentication
CWE: CWE-306 / CWE-287
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔒

Timelineinfo

08/29/2025 Advisory disclosed
08/29/2025 +0 days VulDB entry created
09/01/2025 +3 days VulDB entry last update

Sourcesinfo

Advisory: icsa-25-240-01
Status: Confirmed

CVE: CVE-2025-7405 (🔒)
GCVE (CVE): GCVE-0-2025-7405
GCVE (VulDB): GCVE-100-321848
EUVD: 🔒

Entryinfo

Created: 08/29/2025 07:56
Updated: 09/01/2025 23:43
Changes: 08/29/2025 07:56 (50), 08/29/2025 07:57 (1), 09/01/2025 06:42 (11), 09/01/2025 23:43 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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