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I. Basic Information for CVE-2026-25857
Vulnerability Information

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Vulnerability Title
Tenda G300-F Command Injection via formSetWanDiag
Source: NVD (National Vulnerability Database)
Vulnerability Description
Tenda G300-F router firmware version 16.01.14.2 and prior contain an OS command injection vulnerability in the WAN diagnostic functionality (formSetWanDiag). The implementation constructs a shell command that invokes curl and incorporates attacker-controlled input into the command line without adequate neutralization. As a result, a remote attacker with access to the affected management interface can inject additional shell syntax and execute arbitrary commands on the device with the privileges of the management process.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Tenda G300-F 操作系统命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tenda G300-F是中国腾达(Tenda)公司的一个VPN路由器。 Tenda G300-F 16.01.14.2及之前版本存在操作系统命令注入漏洞,该漏洞源于WAN诊断功能中存在OS命令注入,可能导致执行任意命令。
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
VendorProductAffected VersionsCPESubscribe
Shenzhen Tenda TechnologyTenda G300-F 0 ~ 16.01.14.2 -
II. Public POCs for CVE-2026-25857
#POC DescriptionSource LinkShenlong Link
1Nonehttps://github.com/eeeeeeeeeevan/CVE-2026-25857POC Details
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III. Intelligence Information for CVE-2026-25857
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IV. Related Vulnerabilities
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