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CVE-2023-5748

Quick assessment

Affected
Synology Synology SSL VPN Client
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 SSL VPN Client是中国群晖科技（Synology）公司的一款用于安全连接Synology NAS的VPN客户端软件。 Synology SSL VPN Client 1.4.7-0687之前版本存在安全漏洞，该漏洞源于cgi 组件中存在不检查输入大小的缓冲区复制，允许本地用户通过未指定的向量进行拒绝服务攻击。

CVSS 3.3 · Low EPSS 0.19% · P9
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I. Basic Information for CVE-2023-5748

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Buffer copy without checking size of input ('Classic Buffer Overflow') vulnerability in cgi component in Synology SSL VPN Client before 1.4.7-0687 allows local users to conduct denial-of-service attacks via unspecified vectors.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Synology SSL VPN Client 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Synology SSL VPN Client是中国群晖科技（Synology）公司的一款用于安全连接Synology NAS的VPN客户端软件。 Synology SSL VPN Client 1.4.7-0687之前版本存在安全漏洞，该漏洞源于cgi 组件中存在不检查输入大小的缓冲区复制，允许本地用户通过未指定的向量进行拒绝服务攻击。
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 SSL VPN Client * ~ 1.4.7-0687 -

II. Public POCs for CVE-2023-5748

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III. Intelligence Information for CVE-2023-5748

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Other References for CVE-2023-5748 (1)

IV. Related Vulnerabilities

Same product: Synology SSL VPN Client
Same vendor: Synology