CVE-2025-5241

Denial-of-Service Vulnerability in MELSEC iQ-F Series

Description

Overly Restrictive Account Lockout Mechanism vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series allows a remote unauthenticated attacker to lockout legitimate users for a certain period by repeatedly attempting to login with incorrect passwords. The legitimate users will be unable to login until a certain period has passed after the lockout or until the product is reset.

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.07%
Vendor Advisory mitsubishielectric.com
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-32MT/ES
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-32MT/DS
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-32MT/ESS
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-32MT/DSS
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-32MR/ES
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-32MR/DS
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-64MT/ES
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-64MT/DS
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-64MT/ESS
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-64MT/DSS
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-64MR/ES
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-64MR/DS
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-80MT/ES
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-80MT/DS
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-80MT/ESS
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-80MT/DSS
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-80MR/ES
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-80MR/DS
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UC-32MT/D
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UC-32MT/DSS
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UC-64MT/D
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UC-64MT/DSS
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UC-96MT/D
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UC-96MT/DSS
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UC-32MT/DS-TS
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UC-32MT/DSS-TS
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UC-32MR/DS-TS
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-24MT/ES
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-24MT/DS
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-24MT/ESS
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-24MT/DSS
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-24MR/ES
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-24MR/DS
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-40MT/ES
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-40MT/DS
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-40MT/ESS
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-40MT/DSS
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-40MR/ES
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-40MR/DS
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-60MT/ES
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-60MT/DS
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-60MT/ESS
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-60MT/DSS
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-60MR/ES
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-60MR/DS
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-24MT/ES-A
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-24MR/ES-A
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-40MT/ES-A
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-40MR/ES-A
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-60MT/ES-A
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-60MR/ES-A
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-30MT/ES
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-30MT/ESS
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-30MR/ES
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-40MT/ES
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-40MT/ESS
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-40MR/ES
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-60MT/ES
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-60MT/ESS
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-60MR/ES
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-80MT/ES
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-80MT/ESS
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-80MR/ES
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-30MT/DS
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-30MT/DSS
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-30MR/DS
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-40MT/DS
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-40MT/DSS
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-40MR/DS
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-60MT/DS
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-60MT/DSS
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-60MR/DS
Affected: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5-CCLGN-MS
Published at:
Updated at:

References

Link Tags
https://www.mitsubishielectric.com/psirt/vulnerability/pdf/2025-005_en.pdf vendor advisory
https://www.cisa.gov/news-events/ics-advisories/icsa-25-184-04 government resource

Frequently Asked Questions

What is the severity of CVE-2025-5241?
CVE-2025-5241 has been scored as a medium severity vulnerability.
How to fix CVE-2025-5241?
To fix CVE-2025-5241, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-5241 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-5241 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-5241?
CVE-2025-5241 affects 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, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UJ-60MR/ES-A, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-30MT/ES, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-30MT/ESS, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-30MR/ES, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-40MT/ES, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-40MT/ESS, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-40MR/ES, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-60MT/ES, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-60MT/ESS, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-60MR/ES, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-80MT/ES, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-80MT/ESS, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-80MR/ES, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-30MT/DS, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-30MT/DSS, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-30MR/DS, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-40MT/DS, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-40MT/DSS, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-40MR/DS, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-60MT/DS, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-60MT/DSS, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-60MR/DS, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5-CCLGN-MS.
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