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CVE-2025-4679

Quick assessment

Affected
Synology Active Backup for Microsoft 365
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Synology Active Backup是中国群晖（Synology）公司的一个备份程序。 Synology Active Backup存在安全漏洞，该漏洞源于未指定向量，可能导致敏感信息泄露。

CVSS 6.5 · Medium EPSS 1.09% · P63

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2025-4679

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in Synology Active Backup for Microsoft 365 allows remote authenticated attackers to obtain sensitive information via unspecified vectors.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
不充分的凭证保护机制
Source: CVE Program / CVE List V5
Vulnerability Title
Synology Active Backup 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Synology Active Backup是中国群晖（Synology）公司的一个备份程序。 Synology Active Backup存在安全漏洞，该漏洞源于未指定向量，可能导致敏感信息泄露。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Synology Active Backup for Microsoft 365 N/A -

II. Public POCs for CVE-2025-4679

# POC Description Source Link Shenlong Link
1 SecureOAuth-Demo: Laboratorio educativo que recrea de forma segura la vulnerabilidad CVE-2025-4679 (exposición de credenciales OAuth). Aprende seguridad ofensiva y defensiva mediante ejercicios prácticos, análisis de tráfico y desafíos CTF en un entorno 100% aislado. 🔐 Educativo • 🛡️ Seguro • 🎯 Práctico • 📚 Defensivo https://github.com/fevar54/CVE-2025-4679-SecureOAuth-Demo---Enfoque-educativo POC Details
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III. Intelligence Information for CVE-2025-4679

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IV. Related Vulnerabilities

Same vendor: Synology
Same weakness: CWE-522

V. Comments for CVE-2025-4679

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