| Título | Tenda HG10 HG7_HG9_HG10re_300001138_en_xpon Stack-based Buffer Overflow |
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| Descrição | A stack‑based buffer‑overflow vulnerability (CWE‑121) exists in the Boa web server of Tenda HG10 ONT device, also affecting HG7 and HG9.
The web endpoint /boaform/formLoopBack accepts user‑controlled POST parameter Ethtype. The vulnerable handler retrieves Ethtype value via boaGetVar() and copies it to a fixed‑size stack buffer using strcpy() without adequate length checking.
An unauthenticated remote attacker can send a malicious POST request with an overly long Ethtype value to trigger stack memory corruption. Successful exploitation can crash the Boa web management service causing denial‑of‑service; given Boa runs as root, this vulnerability may potentially lead to remote code execution.
Affected firmware version: HG7_HG9_HG10re_300001138_en_xpon.
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| Fonte | ⚠️ https://github.com/Expl0rer-Ct/CVE/issues/1 |
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| Utilizador | Expl0rer.Ct (UID 100730) |
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| Submissão | 06/09/2026 18h05 (há 26 dias) |
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| Moderação | 02/10/2026 05h49 (25 days later) |
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| Estado | Aceite |
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| Entrada VulDB | 412917 [Tenda HG7/HG9/HG10 300001138_en_xpon Boa Web Server /boaform/formLoopBack boaGetVar Ethtype Excesso de tampão] |
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| Pontos | 20 |
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