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Status published
Medium
CVE-2025-10259
Denial-of-Service(DoS) Vulnerability in TCP Communication Function on MELSEC iQ-F Series CPU module
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Qian Zou, Ke Xu, Xuewei Feng, Qi Li, Xueying Li, and Gang Jin from Zhongguancun Laboratory and Tsinghua University
References
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Affected Vendor
Mitsubishi Electric Corporation
View all reports →Affected Software
MELSEC iQ-F Series FX5U-32MT/ES, MELSEC iQ-F Series FX5U-32MT/DS, MELSEC iQ-F Series FX5U-32MT/ESS, MELSEC iQ-F Series FX5U-32MT/DSS, MELSEC iQ-F Series FX5U-32MR/ES, MELSEC iQ-F Series FX5U-32MR/DS, MELSEC iQ-F Series FX5U-64MT/ES, MELSEC iQ-F Series FX5U-64MT/DS, MELSEC iQ-F Series FX5U-64MT/ESS, MELSEC iQ-F Series FX5U-64MT/DSS, MELSEC iQ-F Series FX5U-64MR/ES, MELSEC iQ-F Series FX5U-64MR/DS, MELSEC iQ-F Series FX5U-80MT/ES, MELSEC iQ-F Series FX5U-80MT/DS, MELSEC iQ-F Series FX5U-80MT/ESS, MELSEC iQ-F Series FX5U-80MT/DSS, MELSEC iQ-F Series FX5U-80MR/ES, MELSEC iQ-F Series FX5U-80MR/DS, MELSEC iQ-F Series FX5UC-32MT/D, MELSEC iQ-F Series FX5UC-32MT/DSS, MELSEC iQ-F Series FX5UC-64MT/D, MELSEC iQ-F Series FX5UC-64MT/DSS, MELSEC iQ-F Series FX5UC-96MT/D, MELSEC iQ-F Series FX5UC-96MT/DSS, MELSEC iQ-F Series FX5UC-32MT/DS-TS, MELSEC iQ-F Series FX5UC-32MT/DSS-TS, MELSEC iQ-F Series FX5UC-32MR/DS-TS, MELSEC iQ-F Series FX5UJ-24MT/ES, MELSEC iQ-F Series FX5UJ-24MT/DS, MELSEC iQ-F Series FX5UJ-24MT/ESS, MELSEC iQ-F Series FX5UJ-24MT/DSS, MELSEC iQ-F Series FX5UJ-24MR/ES, MELSEC iQ-F Series FX5UJ-24MR/DS, MELSEC iQ-F Series FX5UJ-40MT/ES, MELSEC iQ-F Series FX5UJ-40MT/DS, MELSEC iQ-F Series FX5UJ-40MT/ESS, MELSEC iQ-F Series FX5UJ-40MT/DSS, MELSEC iQ-F Series FX5UJ-40MR/ES, MELSEC iQ-F Series FX5UJ-40MR/DS, MELSEC iQ-F Series FX5UJ-60MT/ES, MELSEC iQ-F Series FX5UJ-60MT/DS, MELSEC iQ-F Series FX5UJ-60MT/ESS, MELSEC iQ-F Series FX5UJ-60MT/DSS, MELSEC iQ-F Series FX5UJ-60MR/ES, MELSEC iQ-F Series FX5UJ-60MR/DS, MELSEC iQ-F Series FX5UJ-24MT/ES-A, MELSEC iQ-F Series FX5UJ-24MR/ES-A, MELSEC iQ-F Series FX5UJ-40MT/ES-A, MELSEC iQ-F Series FX5UJ-40MR/ES-A, MELSEC iQ-F Series FX5UJ-60MT/ES-A, MELSEC iQ-F Series FX5UJ-60MR/ES-A, MELSEC iQ-F Series FX5S-30MT/ES, MELSEC iQ-F Series FX5S-30MT/ESS, MELSEC iQ-F Series FX5S-30MR/ES, MELSEC iQ-F Series FX5S-40MT/ES, MELSEC iQ-F Series FX5S-40MT/ESS, MELSEC iQ-F Series FX5S-40MR/ES, MELSEC iQ-F Series FX5S-60MT/ES, MELSEC iQ-F Series FX5S-60MT/ESS, MELSEC iQ-F Series FX5S-60MR/ES, MELSEC iQ-F Series FX5S-80MT/ES, MELSEC iQ-F Series FX5S-80MT/ESS, MELSEC iQ-F Series FX5S-80MR/ES, MELSEC iQ-F Series FX5S-30MT/DS, MELSEC iQ-F Series FX5S-30MT/DSS, MELSEC iQ-F Series FX5S-30MR/DS, MELSEC iQ-F Series FX5S-40MT/DS, MELSEC iQ-F Series FX5S-40MT/DSS, MELSEC iQ-F Series FX5S-40MR/DS, MELSEC iQ-F Series FX5S-60MT/DS, MELSEC iQ-F Series FX5S-60MT/DSS, MELSEC iQ-F Series FX5S-60MR/DS, MELSEC iQ-F Series FX5S-80MT/DS, MELSEC iQ-F Series FX5S-80MT/DSS, MELSEC iQ-F Series FX5S-80MR/DS, MELSEC iQ-F Series FX5S-30MR/ES-A, MELSEC iQ-F Series FX5S-30MT/ES-A, MELSEC iQ-F Series FX5S-40MR/ES-A, MELSEC iQ-F Series FX5S-40MT/ES-A, MELSEC iQ-F Series FX5S-60MR/ES-A, MELSEC iQ-F Series FX5S-60MT/ES-A, MELSEC iQ-F Series FX5S-80MR/ES-A, MELSEC iQ-F Series FX5S-80MT/ES-A
Vulnerable Versions:
All versions
Timeline
Official Publish:
November 6th, 2025
Last Modified:
November 14th, 2025
Added to House:
July 22nd, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Weaknesses (CWE)
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.