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CVE-2023-5593

Quick assessment

Affected
Zyxel SecuExtender 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.

Zyxel SecuExtender SSL VPN Client是中国合勤（Zyxel）公司的一款用于安全访问远程局域网络的产品。 Zyxel SecuExtender SSL VPN Client 4.0.4.0版本存在安全漏洞，该漏洞源于允许经过身份验证的本地用户通过发送精心设计的 CREATE 消息来获得权限升级。

CVSS 7.8 · High EPSS 0.22% · P11
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I. Basic Information for CVE-2023-5593

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The out-of-bounds write vulnerability in the Windows-based SecuExtender SSL VPN Client software version 4.0.4.0 could allow an authenticated local user to gain a privilege escalation by sending a crafted CREATE message.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存写
Source: CVE Program / CVE List V5
Vulnerability Title
Zyxel SecuExtender SSL VPN Client 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Zyxel SecuExtender SSL VPN Client是中国合勤（Zyxel）公司的一款用于安全访问远程局域网络的产品。 Zyxel SecuExtender SSL VPN Client 4.0.4.0版本存在安全漏洞，该漏洞源于允许经过身份验证的本地用户通过发送精心设计的 CREATE 消息来获得权限升级。
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
Zyxel SecuExtender SSL VPN Client 4.0.4.0 -

II. Public POCs for CVE-2023-5593

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III. Intelligence Information for CVE-2023-5593

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Other References for CVE-2023-5593 (1)

IV. Related Vulnerabilities

Same vendor: Zyxel
Same weakness: CWE-787

V. Comments for CVE-2023-5593

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