What is CVE-2025-66271?

CVE-2025-66271 is a medium-severity vulnerability in Elecom Co.,ltd. Clone For Windows, classified under Unquoted Search Path or Element. CVSS score: 6.7/10. Published 2025-12-09.

How severe is CVE-2025-66271?

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

Vulnerability in Elecom Co.,ltd. Clone For Windows

CVE-2025-66271

Clone for Windows provided by ELECOM CO.,LTD. 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: 0.001 (3.0th 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

Elecom Co.,ltd. Clone For Windows — versions prior to Ver.2.36

Weakness classification (CWE)

CWE-428 — Unquoted Search Path or Element

References

vultures@jpcert.or.jp
vultures@jpcert.or.jp

Frequently asked questions

What is CVE-2025-66271?: CVE-2025-66271 is a medium-severity vulnerability in Elecom Co.,ltd. Clone For Windows, classified under Unquoted Search Path or Element. CVSS score: 6.7/10. Published 2025-12-09.
How severe is CVE-2025-66271?: Medium severity. CVSS v3 base score is 6.7 out of 10.