CVE-2025-5514 (CVSS 5.3)

Description

Improper Handling of Length Parameter Inconsistency vulnerability in web server function on Mitsubishi Electric Corporation MELSEC iQ-F Series CPU module allows a remote unauthenticated attacker to delay the processing of the web server function and prevent legitimate users from utilizing the web server function, by sending a specially crafted HTTP request.

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CVSS v3.1 Score

5.3

MEDIUM

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

Weakness Type (CWE)

CWE-130 CWE-130

References

Other References

https://jvn.jp/vu/JVNVU90316328/ https://www.cisa.gov/news-events/ics-advisories/icsa-25-233-01 https://www.mitsubishielectric.com/psirt/vulnerability/pdf/2025-010_en.pdf

Frequently Asked Questions

What is CVE-2025-5514? +

Improper Handling of Length Parameter Inconsistency vulnerability in web server function on Mitsubishi Electric Corporation MELSEC iQ-F Series CPU module allows a remote unauthenticated attacker to delay the processing of the web server function and prevent legitimate users from utilizing the web server function, by sending a specially crafted HTTP request. It has a CVSS v3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2025-5514? +

CVE-2025-5514 has a CVSS v3.1 score of 5.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

How do I check if I'm vulnerable to CVE-2025-5514? +

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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