| Título | Totolink N200RE V5 V5_V9.3.5u.5812_B20200414 Stack-based Buffer Overflow |
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| Descrição | A stack overflow vulnerability has been found in the cstecgi.cgi component of the TOTOLINK N200RE V5 Router. This vulnerability can also be exploited by remotely crafting requests without requiring a valid username and password.
The trigger point is located in the sub_41F5B8 method of the cstecgi.cgi component. There is no length validation for the http_host field here, which causes strcpy to overflow.
v25 only allocated 256 bytes of memory space.Then, the http_host parameter from the request parameters is retrieved and copied into v25 using strcpy. If the http_host value is too long, it will cause an overflow. |
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| Fonte | ⚠️ https://github.com/jinhao118/cve/blob/main/TOTOLINK%20N200RE%20V5%20Router.md |
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| Utilizador | allanp0e (UID 94632) |
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| Submissão | 08/02/2026 14h47 (há 8 meses) |
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| Moderação | 18/02/2026 18h31 (10 days later) |
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| Estado | Duplicado |
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| Entrada VulDB | 273558 [TOTOLINK CP450 4.1.0cu.747_B20191224 /cgi-bin/cstecgi.cgi loginauth http_host Excesso de tampão] |
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| Pontos | 0 |
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