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CVE-2025-3755

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

Published: May 29, 2025Updated: Aug 27, 2025 Sources: CVE List NVD BDU csafCWE-1285
NVD MITRE
9.1CVSSCRITICAL
EPSS Score
0.7%
Top 51.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-1285

Affected Products

MELSEC iQ-F FX5U-xMy/zMitsubishi Electric CorporationICS / OT / IoT
MELSEC iQ-F FX5UC-xMy/zMitsubishi Electric CorporationICS / OT / IoT
MELSEC iQ-F FX5UC-32MT/DS-TSMitsubishi Electric CorporationICS / OT / IoT
MELSEC iQ-F FX5UJ-xMy/zMitsubishi Electric CorporationICS / OT / IoT
MELSEC iQ-F FX5UJ-xMy/ES-AMitsubishi Electric CorporationICS / OT / IoT
mitsubishi electric corporationcommercialJPICS / OT / IoTaka mitsubishi electric
and 76 more affected products View all →

Exploitability

Official Patch Available

References

https://nvd.nist.gov/vuln/detail/CVE-2025-3755
nvd.nist.gov
https://www.mitsubishielectric.com/psirt/vulnerability/pdf/2025-003_en.pdf
mitsubishielectric.com
https://jvn.jp/vu/JVNVU94070048/
jvn.jp
and 12 more references View all →

Timeline

Published
May 29, 2025
Last Updated
Aug 27, 2025

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