CVE-2025-66592

An origin validation error vulnerability in Synology Active Backup for Business Agent before 3.1.0-4967 allows local users to write arbitrary files with restricted content and conduct denial-of-service during installation.

CVSS v3 6.1 MEDIUM

6.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 4.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.synology.com/en-global/security/advisory/Synology_SA_25_16	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:synology:active_backup_for_business_agent:*:*:*:*:*:*:*:*

History

30 Sep 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) Una vulnerabilidad de error de validación de origen en Synology Active Backup for Business Agent anterior a 3.1.0-4967 permite a usuarios locales escribir archivos arbitrarios con contenido restringido y realizar denegación de servicio durante la instalación.

Information

Published : 2026-05-27 09:16

Updated : 2026-10-07 08:10

NVD link : CVE-2025-66592

Mitre link : CVE-2025-66592

CVE.ORG link : CVE-2025-66592

JSON object : View

Products Affected

synology

active_backup_for_business_agent

CWE

CWE-346

Origin Validation Error

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