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I. Basic Information for CVE-2026-5021
Vulnerability Information

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Vulnerability Title
Tenda F453 httpd PPTPUserSetting fromPPTPUserSetting stack-based overflow
Source: NVD (National Vulnerability Database)
Vulnerability Description
A flaw has been found in Tenda F453 1.0.0.3. This affects the function fromPPTPUserSetting of the file /goform/PPTPUserSetting of the component httpd. This manipulation of the argument delno causes stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been published and may be used.
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 F453 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tenda F453是中国腾达(Tenda)公司的一款无线路由器。 Tenda F453 1.0.0.3版本存在安全漏洞,该漏洞源于组件httpd中文件/goform/PPTPUserSetting的函数fromPPTPUserSetting对参数delno操作不当,可能导致栈缓冲区溢出。
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
TendaF453 1.0.0.3 cpe:2.3:o:tenda:f453_firmware:*:*:*:*:*:*:*:*
II. Public POCs for CVE-2026-5021
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III. Intelligence Information for CVE-2026-5021
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IV. Related Vulnerabilities
V. Comments for CVE-2026-5021

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