| Title | Tenda FH1201 V1.2.0.14(408) Stack-based Buffer Overflow |
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| Description | A stack-based buffer overflow vulnerability was discovered in the Tenda FH1201 wireless router. The vulnerability is located in the /bin/httpd binary within the formSafeEmailFilter function.The service retrieves the user-controlled POST parameter page via websGetVar and passes it directly to sprintf to be stored in a 256-byte stack buffer (v6). Because there is no length validation on the input, providing a string longer than approximately 230 bytes overflows the buffer, allowing an attacker to overwrite the return address on the stack. This can result in a Denial of Service (DoS) or potentially Remote Code Execution (RCE). |
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| Source | ⚠️ https://www.notion.so/Tenda-FH1201-formSafeEmailFilter-Stack-based-Buffer-Overflow-2fe0448e6195805f90a1cb3a2d740e92?showMoveTo=true&saveParent=true |
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| User | minipython (UID 75988) |
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| Submission | 02/05/2026 17:44 (8 months ago) |
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| Moderation | 02/08/2026 15:40 (3 days later) |
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| Status | Duplicate |
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| VulDB entry | 316246 [Tenda FH1201 1.2.0.14(408) /goform/SafeEmailFilter formSafeEmailFilter page stack-based overflow] |
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| Points | 0 |
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