| 标题 | TOTOLINK WA1200 V5.9c.2914 NULL Pointer Dereference |
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| 描述 | 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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| 来源 | ⚠️ https://github.com/JackWesleyy/CVE/blob/main/WA1200/TOTOLINK%20WA1200%20NULL%20Pointer%20Dereference%20Vulnerability.md |
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| 用户 | JackWesley (UID 93590) |
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| 提交 | 2026-01-07 02時51分 (10 月前) |
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| 管理 | 2026-01-08 16時15分 (2 days later) |
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| 状态 | 已接受 |
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| VulDB条目 | 340128 [TOTOLINK WA1200 5.9c.2914 HTTP Request cstecgi.cgi 拒绝服务] |
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| 积分 | 20 |
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