Unquoted File Path Vulnerability in FULLBACK Manager Pro by GS Yuasa International Ltd.
CVE-2025-66461

8.4HIGH

Key Information:

Vendor

Gs Yuasa International Ltd.

Status
Fullback Manager Pro (for Windows)
Fullback Manager Pro For Network (for Windows)
Vendor
CVE Published:
8 December 2025

What is CVE-2025-66461?

The FULLBACK Manager Pro software by GS Yuasa International Ltd. contains a security issue where two Windows services are registered with unquoted file paths. This flaw allows an authenticated user with write permissions to execute arbitrary code with SYSTEM privileges if they manipulate the path directory. Proper configuration and quoting of the file paths are essential to mitigate this risk and protect the system from potential exploitation.

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Affected Version(s)

FULLBACK Manager Pro (for Windows) 4.00 and earlier

FULLBACK Manager Pro for Network (for Windows) 3.00 and earlier

References

https://ps.gs-yuasa.com/technicalinfo/pdf/failure/FMP_inf...
https://jvn.jp/en/jp/JVN59242986/

CVSS V4

Score:
8.4
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

CVSS V3.0

Score:
6.7
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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