# CVE-2025-61871

## Summary

- **CVE ID:** CVE-2025-61871
- **Severity:** HIGH
- **CVSS Score:** 8.4 (CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N)
- **CWE:** CWE-428
- **Published:** Oct 10, 2025
- **Last Modified:** Mar 12, 2026

## Description

NAS Navigator2 Windows version by BUFFALO INC. registers a Windows service with an unquoted file path. A user with the write permission on the root directory of the system drive may execute arbitrary code with SYSTEM privilege.

## Affected Products

- BUFFALO INC. — NAS Navigator2 (Windows version only) (prior to Ver.3.12.0)

## References

- [CNA](https://www.buffalo.jp/news/detail/20251009-01.html)
- [CNA](https://jvn.jp/en/jp/JVN69099112/)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.15%
- **EPSS Percentile:** 4.9

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._