CVE-2025-3755

Information Disclosure and Denial-of-Service(DoS) Vulnerability in MELSEC iQ-F Series CPU module

Description

Improper Validation of Specified Index, Position, or Offset in Input vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series CPU modules allows a remote unauthenticated attacker to read information in the product, to cause a Denial-of-Service (DoS) condition in MELSOFT connection, or to stop the operation of the CPU module (causing a DoS condtion on the CPU module), by sending specially crafted packets. The product is needed to reset for recovery.

Category

9.1
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 0.04%
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
Published at:
Updated at:

References

Link Tags
https://www.mitsubishielectric.com/psirt/vulnerability/pdf/2025-003_en.pdf vendor advisory
https://jvn.jp/vu/JVNVU94070048/ government resource

Frequently Asked Questions

What is the severity of CVE-2025-3755?
CVE-2025-3755 has been scored as a critical severity vulnerability.
How to fix CVE-2025-3755?
To fix CVE-2025-3755, 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-2025-3755 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-3755 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-2025-3755?
CVE-2025-3755 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.
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