Published:2025/10/22  Last Updated:2025/10/22

JVN#03295012
I-O DATA NarSuS App registers a Windows service with an unquoted file path

Overview

NarSuS App provided by I-O DATA DEVICE, INC. registers a Windows service with an unquoted file path.

Products Affected

  • NarSuS App versions prior to Ver.2.33
The affected product is available for multiple product series. For details, refer to the information provided by the developer.

Description

NarSuS App provided by I-O DATA DEVICE, INC. contains the following vulnerability.

  • Unquoted search path or element (CWE-428)
    • 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 Base Score 8.4
    • CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Base Score 6.7
    • CVE-2025-61865

Impact

A user with the write permission on the root directory of the system drive may execute arbitrary code with SYSTEM privilege.

Solution

Update the Software
Update the software to the latest version according to the information provided by the developer.

Vendor Status

Vendor Status Last Update Vendor Notes
I-O DATA DEVICE, INC. Vulnerable 2025/10/22 I-O DATA DEVICE, INC. website

References

JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Credit

Kazuma Matsumoto of GMO Cybersecurity by IERAE, Inc. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

Other Information

JPCERT Alert
JPCERT Reports
CERT Advisory
CPNI Advisory
TRnotes
CVE CVE-2025-61865
JVN iPedia JVNDB-2025-000091