Medium severity · published Dec 8, 2025
CVE-2025-66461
FULLBACK Manager Pro provided by GS Yuasa International Ltd
6.7
CVSS
0.2%
EPSS
No
On KEV
Description
FULLBACK Manager Pro provided by GS Yuasa International Ltd. registers two Windows services with unquoted file paths. A user may execute arbitrary code with SYSTEM privilege if he/she has the write permission on the path to the directory where the affected product is installed.
CVSS vector
CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 5% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FM
FULLBACK Manager Pro (for Windows) · GS Yuasa International Ltd.
4.00 and earlier · source: vendor
FM
FULLBACK Manager Pro for Network (for Windows) · GS Yuasa International Ltd.
3.00 and earlier · source: vendor
Affected product
FM
FULLBACK Manager Pro (for Windows)
GS Yuasa International Ltd.