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I. Basic Information for CVE-2026-3227
Vulnerability Information

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Vulnerability Title
Authenticated Command Injection on TP-Link TL-WR802N, TL-WR841N and TL-WR840N
Source: NVD (National Vulnerability Database)
Vulnerability Description
A command injection vulnerability was identified in TP-Link TL-WR802N v4, TL-WR841N v14, and TL-WR840N v6 due to improper neutralization of special elements used in an OS command. In the router configuration import function allows an authenticated attacker to upload a crafted configuration file that results in execution of OS commands with root privileges during port-trigger processing. Successful exploitation allows an authenticated attacker to execute system commands with root privileges, leading to full device compromise.
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
TP-LINK多款产品 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TP-LINK TL-WR802N等都是中国普联(TP-LINK)公司的产品。TP-LINK TL-WR802N是一个无线路由器。TP-LINK TL-WR840N是一款无线路由器。TP-Link TL-WR841N等都是中国普联(TP-Link)公司的产品。TP-Link TL-WR841N是一款路由器。 TP-LINK多款产品存在安全漏洞,该漏洞源于路由器配置导入功能中对特殊元素的中和不当,可能导致经过身份验证的攻击者执行具有root权限的OS命令。以下产品及版本受到影响:TP-Link TL-WR8
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
TP-Link Systems Inc.TL-WR802N v4 0 ~ V4_260304 -
TP-Link Systems Inc.TL-WR841N v14 0 ~ V14_260303 -
TP Link Systems Inc.TL-WR840N v6 0 ~ V6_260304 -
II. Public POCs for CVE-2026-3227
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III. Intelligence Information for CVE-2026-3227
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IV. Related Vulnerabilities
V. Comments for CVE-2026-3227

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