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CVE-2026-118238

Quick assessment

Affected
Tenda W18E
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.

腾达（Tenda）W18E 设备的 Web 管理服务器存在操作系统命令注入漏洞。该漏洞源于"diagnose"抓包功能中对 JSON 字段未进行适当验证。已认证用户可在 或 字段中注入 Shell 元字符，这些字符随后会被拼接到 命令中，并以 root 权限执行。若设备处于出厂重置状态，则无需认证即可利用此漏洞。

AI Predicted 9.8 Difficulty: Easy EPSS 1.54% · P75

Affected Version Matrix 1

VendorProduct Version RangeStatus
Tenda W18E V16.01.0.20 affected
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I. Basic Information for CVE-2026-118238

Vulnerability Information
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Vulnerability Title
CVE-2026-118238
Source: CVE Program / CVE List V5
Vulnerability Description
The Tenda W18E web management server is vulnerable to OS command injection via the "diagnose" packet-capture feature due to improper validation of JSON fields. An authenticated user can inject shell metacharacters into the protocol or targetDevice fields, which are later concatenated into a tcpdump command and executed with root privileges. This vulnerability can be exploited without authentication if the device is in a factory-reset state.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Tenda W18E V16.01.0.20 -

II. Public POCs for CVE-2026-118238

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III. Intelligence Information for CVE-2026-118238

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Other References for CVE-2026-118238 (1)

IV. Related Vulnerabilities

Same product: W18E
Same vendor: Tenda