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CVE-2026-4793

Quick assessment

Affected
Synology Synology Assistant
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Synology Assistant是中国Synology公司的一款NAS设备管理工具。 Synology Assistant 7.0.7-50095之前版本存在权限许可和访问控制问题漏洞，该漏洞源于默认权限设置不正确，可能导致本地用户在安装期间读取或写入任意文件并造成拒绝服务。

CVSS 7.3 · High EPSS 0.15% · P3

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
Synology Synology Assistant *< 7.0.7-50095 affected
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I. Basic Information for CVE-2026-4793

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An incorrect default permissions vulnerability in Synology Assistant before 7.0.7-50095 allows local users to read or write arbitrary files and conduct denial-of-service during installation.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
缺省权限不正确
Source: CVE Program / CVE List V5
Vulnerability Title
Synology Assistant 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Synology Assistant是中国Synology公司的一款NAS设备管理工具。 Synology Assistant 7.0.7-50095之前版本存在权限许可和访问控制问题漏洞，该漏洞源于默认权限设置不正确，可能导致本地用户在安装期间读取或写入任意文件并造成拒绝服务。
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 Synology Assistant * ~ 7.0.7-50095 -

II. Public POCs for CVE-2026-4793

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III. Intelligence Information for CVE-2026-4793

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Vendor Advisories for CVE-2026-4793 (1)

IV. Related Vulnerabilities

Same product: Synology Assistant
Same vendor: Synology
Same weakness: CWE-276

V. Comments for CVE-2026-4793

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