| Título | TOTOLINK WA1200 V5.9c.2914 NULL Pointer Dereference |
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| Descrição | A NULL pointer dereference vulnerability exists in the cstecgi.cgi CGI program of TOTOLINK WA1200-PoE firmware version V5.9c.2914.
The vulnerability is triggered when handling a crafted HTTP request containing the action=login parameter. During request processing, the CGI application attempts to communicate with a local backend service. If the backend connection fails, the response pointer is not properly validated and remains NULL. The program subsequently passes this NULL pointer to cJSON_Parse() and related JSON access routines without checking its validity, resulting in a segmentation fault.
A remote, unauthenticated attacker can exploit this vulnerability to crash the CGI process, leading to a DoS condition affecting the device’s web management interface. |
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| Fonte | ⚠️ https://github.com/JackWesleyy/CVE/blob/main/WA1200/TOTOLINK%20WA1200%20NULL%20Pointer%20Dereference%20Vulnerability.md |
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| Utilizador | JackWesley (UID 93590) |
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| Submissão | 07/01/2026 02h51 (há 10 meses) |
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| Moderação | 08/01/2026 16h15 (2 days later) |
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| Estado | Aceite |
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| Entrada VulDB | 340128 [TOTOLINK WA1200 5.9c.2914 HTTP Request cstecgi.cgi Negação de Serviço] |
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| Pontos | 20 |
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