| Título | Tenda W20E Enterprise Router V15.11.0.6 Stack-based Buffer Overflow |
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| Descripción | A stack-based buffer overflow vulnerability has been identified in the formSetPortMirror function of the Tenda W20E router. By sending a crafted portMirrorMirroredPorts parameter, an authenticated attacker can overflow a 256-byte stack buffer, leading to a service crash or Remote Code Execution (RCE).
The formSetPortMirror function handles port mirroring configuration. It retrieves the user-controlled parameter portMirrorMirroredPorts and uses sprintf to format it into a fixed-size stack buffer sMibValue (256 bytes).
The lack of bounds checking on pMirroredPorts allows an attacker to provide a string longer than 256 bytes, overwriting the saved Link Register (LR) on the stack. |
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| Fuente | ⚠️ https://github.com/Robots10/IoT_vlu/blob/main/reports/Tenda/formSetPortMirror/portMirrorMirroredPorts.md |
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| Usuario | hacker128 (UID 93883) |
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| Sumisión | 2026-05-24 17:22 (hace 16 días) |
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| Moderación | 2026-06-07 18:06 (14 days later) |
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| Estado | Aceptado |
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| Entrada de VulDB | 369142 [Tenda W20E 15.11.0.6 /goform/setPortMirror formSetPortMirror portMirrorMirroredPorts desbordamiento de búfer] |
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| Puntos | 20 |
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