CVE-2025-66271

Name: CVE-2025-66271
Creator: NVD / NIST
Published: 2025-12-09T16:18:18.21+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.4/10EPSS 0.13%

Last modified Jun 17, 2026

CVE-2025-66271 is a high-severity vulnerability rated 8.4/10 on the CVSS scale. Clone for Windows provided by ELECOM CO.,LTD. registers a Windows service with an unquoted file path. EPSS estimates a 0.13% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 4.0

8.4/10

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.13%

3.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-428

References

Timeline

Published: Dec 9, 2025
Last Modified: Jun 17, 2026
Status: Deferred

Frequently Asked Questions

What is CVE-2025-66271?

How severe is CVE-2025-66271?

CVE-2025-66271 has a CVSS score of 8.4/10 (HIGH severity). The EPSS model estimates a 0.13% probability of exploitation in the next 30 days.

How do I fix CVE-2025-66271?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-66271?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST