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I. Basic Information for CVE-2026-2871
Vulnerability Information
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Vulnerability Title
Tenda A21 SetIpMacBind fromSetIpMacBind stack-based overflow
Source: NVD (National Vulnerability Database)
Vulnerability Description
A weakness has been identified in Tenda A21 1.0.0.0. This affects the function fromSetIpMacBind of the file /goform/SetIpMacBind. This manipulation of the argument list causes stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
栈缓冲区溢出
Source: NVD (National Vulnerability Database)
Vulnerability Title
Tenda A21 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tenda A21是中国腾达（Tenda）公司的一个无线信号扩展器。 Tenda A21 1.0.0.0版本存在安全漏洞，该漏洞源于/goform/SetIpMacBind文件中fromSetIpMacBind函数对参数list的操作存在栈缓冲区溢出。
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
TendaA21 1.0.0.0 -
II. Public POCs for CVE-2026-2871
#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium
opencode/nemotron-3-super-free · 7790 chars
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III. Intelligence Information for CVE-2026-2871
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IV. Related Vulnerabilities
Same product: A21
Same vendor: Tenda
Same weakness: CWE-121
V. Comments for CVE-2026-2871

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