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CVE-2025-10259

Denial-of-Service(DoS) Vulnerability in TCP Communication Function on MELSEC iQ-F Series CPU module

Published: Nov 6, 2025Updated: Nov 14, 2025 Sources: CVE List NVD csafCWE-1284
NVD MITRE
5.3CVSSMEDIUM
EPSS Score
0.4%
Top 71.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

Description

Improper Validation of Specified Quantity in Input vulnerability in TCP Communication Function on Mitsubishi Electric Corporation MELSEC iQ-F Series CPU module allows a remote attacker to disconnect the connection by sending specially crafted TCP packets to cause a denial-of-service (DoS) condition on the products. There is no impact on connections other than the attacked one.

CVSS Vector Breakdown

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

Weaknesses

CWE-1284

Affected Products

MELSEC iQ-F Series FX5U-32MT/ESMitsubishi Electric CorporationICS / OT / IoT
MELSEC iQ-F Series FX5U-32MT/DSMitsubishi Electric CorporationICS / OT / IoT
MELSEC iQ-F Series FX5U-32MT/ESSMitsubishi Electric CorporationICS / OT / IoT
MELSEC iQ-F Series FX5U-32MT/DSSMitsubishi Electric CorporationICS / OT / IoT
MELSEC iQ-F Series FX5U-32MR/ESMitsubishi Electric CorporationICS / OT / IoT
mitsubishi electric corporationcommercialJPICS / OT / IoTaka mitsubishi electric
and 78 more affected products View all →

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

References

https://jvn.jp/vu/JVNVU92088475/
jvn.jp
https://www.cisa.gov/news-events/ics-advisories/icsa-25-317-01
cisa.gov
https://www.mitsubishielectric.com/psirt/vulnerability/pdf/2025-014_en.pdf
mitsubishielectric.com
and 11 more references View all →

Timeline

Published
Nov 6, 2025
Last Updated
Nov 14, 2025

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