| Title | Tenda FH451 V1.0.0.9 Stack-based Buffer Overflow |
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| Description | The router model FH451V1.0.0.9, manufactured by Shenzhen Tenda Technology Co., Ltd., contains a binary stack-based buffer overflow vulnerability located within the function frmL7ProtForm. This function receives a parameter a1 via a POST request and extracts a variable named page from it. Subsequently, the function utilizes the sprintf function to write the contents of the page variable into a buffer array v11 of size 64 bytes without performing any bounds checking. An attacker can exploit this vulnerability to cause a denial of service (DoS) condition. Furthermore, this vulnerability can be leveraged to construct a Return-Oriented Programming (ROP) chain, enabling the attacker to overwrite the return address and achieve privilege escalation or remote code execution (RCE). |
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| Source | ⚠️ https://github.com/zezhifu1/cve_report/blob/main/FH451/frmL7ProtForm.md |
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| User | zezhifu (UID 87457) |
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| Submission | 07/08/2025 03:29 PM (8 months ago) |
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| Moderation | 07/11/2025 10:41 PM (3 days later) |
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| Status | Accepted |
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| VulDB entry | 316188 [Tenda FH451 1.0.0.9 HTTP POST Request /goform/L7Prot frmL7ProtForm page stack-based overflow] |
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| Points | 20 |
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