CVE-2025-66592

MEDIUM EPSS 0.4%
Published May 27, 20261mo ago · Modified Jun 17, 20261w ago
5.6 CVSS 3.1
Medium
Find Similar
Published May 27, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago

Description

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 Details

Base Score
5.6
Exploitability
1.3
Impact
4.2
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction Required
Scope Unchanged
Confidentiality None
Integrity Low
Availability High

Threat Intelligence

EPSS Exploit Probability
0.4% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-346

Affected Products 1

VendorProductVersionRange
synologyactive_backup_for_business_agent* <3.1.0-4967

References 1

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.