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CVE-2021-35027

Quick assessment

Affected
Zyxel ZyWALL VPN2S Firmware
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 Vpn2S是中国合勤科技（Zyxel）公司的一款可靠安全的Vpn路由器。 Zyxel VPN2S 固件版本 1.12 的 Web 服务器中存在安全漏洞，该漏洞可能允许远程攻击者访问敏感信息。

CVSS 7.5 · High EPSS 2.04% · P81
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I. Basic Information for CVE-2021-35027

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A directory traversal vulnerability in the web server of the Zyxel VPN2S firmware version 1.12 could allow a remote attacker to gain access to sensitive information.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
路径遍历：’dir/../../filename’
Source: CVE Program / CVE List V5
Vulnerability Title
Zyxel VPN2S 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Zyxel Vpn2S是中国合勤科技（Zyxel）公司的一款可靠安全的Vpn路由器。 Zyxel VPN2S 固件版本 1.12 的 Web 服务器中存在安全漏洞，该漏洞可能允许远程攻击者访问敏感信息。
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 ZyWALL VPN2S Firmware 1.12(ABLN.0)C0 -

II. Public POCs for CVE-2021-35027

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III. Intelligence Information for CVE-2021-35027

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Other References for CVE-2021-35027 (1)

IV. Related Vulnerabilities

Same product: ZyWALL VPN2S Firmware
Same vendor: Zyxel
Same weakness: CWE-27

V. Comments for CVE-2021-35027

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