What is CVE-2025-61871?

CVE-2025-61871 is a medium-severity vulnerability in Buffalo Inc. Nas Navigator2 (Windows Version Only), classified under Unquoted Search Path or Element. CVSS score: 6.7/10. Published 2025-10-10.

How severe is CVE-2025-61871?

Medium severity. CVSS v3 base score is 6.7 out of 10.

Vulnerability in Buffalo Inc. Nas Navigator2 (Windows Version Only)

CVE-2025-61871

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.

EPSS: 0.002 (5.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Buffalo Inc. Nas Navigator2 (Windows Version Only) — versions prior to Ver.3.12.0

Weakness classification (CWE)

CWE-428 — Unquoted Search Path or Element

References

Frequently asked questions

What is CVE-2025-61871?: CVE-2025-61871 is a medium-severity vulnerability in Buffalo Inc. Nas Navigator2 (Windows Version Only), classified under Unquoted Search Path or Element. CVSS score: 6.7/10. Published 2025-10-10.
How severe is CVE-2025-61871?: Medium severity. CVSS v3 base score is 6.7 out of 10.