CVE-2025-7405: Missing Auth (CVSS 7.3)

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.

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CVSS v3.1 Score

7.3

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Weakness Type (CWE)

CWE-306 Missing Authentication

References

Other References

https://jvn.jp/vu/JVNVU90041458/ https://www.cisa.gov/news-events/ics-advisories/icsa-25-240-01 https://www.mitsubishielectric.com/psirt/vulnerability/pdf/2025-011_en.pdf

Frequently Asked Questions

What is CVE-2025-7405? +

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. It has a CVSS v3.1 base score of 7.3 (HIGH).

How severe is CVE-2025-7405? +

CVE-2025-7405 has a CVSS v3.1 score of 7.3 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

How do I check if I'm vulnerable to CVE-2025-7405? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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