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Vulnerabilities

Vulnerability · CVE-2025-66271

Clone for Windows provided by ELECOM CO.,LTD.

Published Dec 9, 2025 · catalog updated Dec 9, 2025 · ELECOM CO.,LTD. Clone for Windows

Last checked Oct 31, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-66271. EPSS is 0.15%. Act only if a listed version of ELECOM CO.,LTD. Clone for Windows is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High8.4
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.15%
Remediation
Advisory link
Affected products
vendor ELECOM CO.,LTD. Clone for Windows prior to Ver.2.36

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor ELECOM CO.,LTD. Clone for Windows prior to Ver.2.36prior to Ver.2.36

How to fix CVE-2025-66271

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-66271. EPSS is 0.15%. Act only if a listed version of ELECOM CO.,LTD. Clone for Windows is installed.

Which versions are affected?

Compare what you have installed with ELECOM CO.,LTD. Clone for Windows prior to Ver.2.36 prior to Ver.2.36. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.15%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Windows security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Dec 9, 2025 · EUVD

    Detected

    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.

  2. Dec 9, 2025 · EUVD

    Updated

    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.

Sources

  • CVE.orgVulnerability recordCVE-2025-66271

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-66271

    30-day exploitation probability 0.15%

    first.org
  • EUVDVulnerability recordEUVD-2025-201913

    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.

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 31, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSOct 31, 2026
  • CVE.orgOct 28, 2026
  • EUVDOct 27, 2026