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CVE-2025-10314 Mitsubishi Electric CVE debrief

CVE-2025-10314 is a high-severity local code execution issue in Mitsubishi Electric FREQSHIP-mini for Windows. CISA’s advisory says incorrect default permissions can let a local attacker replace the service executable or DLL files in the installation directory with crafted files, leading to arbitrary code execution with system privileges. Mitsubishi Electric says the issue is addressed in version 8.1.0 or later.

Vendor
Mitsubishi Electric
Product
FREQSHIP-mini for Windows
CVSS
HIGH 8.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-02-03
Original CVE updated
2026-02-03
Advisory published
2026-02-03
Advisory updated
2026-02-03

Who should care

Organizations running Mitsubishi Electric FREQSHIP-mini for Windows, especially Windows administrators and OT/ICS teams responsible for UPS shutdown tooling on systems that may be locally accessed or remotely reachable.

Technical summary

The advisory describes a software installation directory permissions problem in FREQSHIP-mini for Windows. Because default permissions are incorrect, a local attacker may be able to swap service executable or DLL files with specially crafted versions and trigger execution with system privileges. The supplied CVSS vector is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H (8.8 High).

Defensive priority

High. Apply the vendor fix as soon as practical, because the flaw can result in system-privileged code execution and the vendor has provided a specific fixed release.

Recommended defensive actions

  • Upgrade FREQSHIP-mini for Windows to version 8.1.0 or later from Mitsubishi Electric’s download site.
  • Limit use of affected PCs to a LAN and block remote logins from untrusted networks, hosts, and non-administrator users.
  • Use a firewall or VPN to block unauthorized access, and allow remote login only for administrators when internet exposure is unavoidable.
  • Restrict physical access to the PC and its connected network.
  • Do not click links or open attachments from untrusted sources.
  • Install and regularly update antivirus software.

Evidence notes

The source corpus is CISA CSAF advisory ICSA-26-034-01, published 2026-02-03, with revision history noting an initial republication of Mitsubishi Electric 2025-019. The advisory and vendor remediation both identify incorrect default permissions as the root cause and list version 8.1.0 or later as the fixed release. No KEV listing or ransomware-use data was supplied.

Sources and references

Verified primary and authoritative sources

  • CVE-2025-10314 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2025-10314

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2025-10314 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2025-10314

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • Source item URL

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2026/icsa-26-034-01.json

    cisa_csaf

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/news-events/ics-advisories/icsa-26-034-01

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/resources-tools/resources/ics-recommended-practices

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/topics/industrial-control-systems

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/uscert/sites/default/files/publications/emailscams0905.pdf

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/uscert/ncas/tips/ST04-014

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/news-events/ics-alerts/ics-alert-10-301-01

    Reference

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.