CVE-2025-10259

5.3 mediumEPSS 0.5%

Medium (5.3). EPSS 0.5% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

5.3 medium

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 39% of CVEs (scores of 2026-10-31)
CWE: CWE-1284
Published: 2025-11-06
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

References

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

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