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CVE-2025-4679 Details

Description

A vulnerability in Synology Active Backup for Microsoft 365 allows remote authenticated attackers to obtain sensitive information via unspecified vectors.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:6.5 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CNA: [email protected]CVSS-B:6.5 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://modzero.com/en/blog/when-backups-open-backdoors-synology-active-backup-m365/	CVE
https://modzero.com/static/MZ-25-02_modzero_Synology-Active-Backup-M365.pdf	CVE
https://www.synology.com/en-global/security/advisory/Synology_SA_25_06	[email protected]	Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-522	Insufficiently Protected Credentials	[email protected]

Affected Products

Product	Versions
synology active backup for microsoft 365	All versions
CPE cpe:2.3:a:synology:active_backup_for_microsoft_365:-:::::::* Remediation No remediation found in references.

Change History

5 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
Jul 2, 2025	CVE Modified	CVE
May 30, 2025	Initial Analysis	[email protected]
May 16, 2025	New CVE Received	[email protected]