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.
Published: 2026-05-27
Score: 6.1 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Tue, 02 Jun 2026 10:15:00 +0000

Type Values Removed Values Added
Title Local User File Write Vulnerability in Synology Active Backup for Business Agent

Tue, 02 Jun 2026 08:30:00 +0000

Type Values Removed Values Added
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 during installation. 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.

Mon, 01 Jun 2026 20:15:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:synology:active_backup_for_business_agent:*:*:*:*:*:*:*:*

Wed, 27 May 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 27 May 2026 12:00:00 +0000

Type Values Removed Values Added
First Time appeared Synology
Synology active Backup For Business Agent
Vendors & Products Synology
Synology active Backup For Business Agent

Wed, 27 May 2026 10:45:00 +0000

Type Values Removed Values Added
Title Local User File Write Vulnerability in Synology Active Backup for Business Agent

Wed, 27 May 2026 09:00:00 +0000

Type Values Removed Values Added
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 during installation.
Weaknesses CWE-346
References
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H'}


Subscriptions

Synology Active Backup For Business Agent
cve-icon MITRE

Status: PUBLISHED

Assigner: synology

Published:

Updated: 2026-06-02T08:20:25.069Z

Reserved: 2025-12-05T03:19:16.760Z

Link: CVE-2025-66592

cve-icon Vulnrichment

Updated: 2026-05-27T12:39:58.229Z

cve-icon NVD

Status : Analyzed

Published: 2026-05-27T09:16:27.633

Modified: 2026-06-17T09:57:04.853

Link: CVE-2025-66592

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-02T10:00:06Z

Weaknesses