| Titel | Tenda Router US_W20EV4.0br_V15.11.0.61068_1546_841_CN_TDC Memory Corruption |
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| Beschreibung | Tenda W20E firmware US_W20EV4.0br_V15.11.0.61068_1546_841_CN_TDC contains a stack-based buffer overflow in the formDelWebAuthWhiteUser HTTP handler. The handler retrieves the attacker-controlled webAuthWhiteUserIndex parameter using websGetVar() and copies it into the 32-size stack buffer using strncpy() without length validation. Values of more characters overwrite adjacent stack memory and reliably crash the web management service. The confirmed impact is denial of service. |
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| Quelle | ⚠️ https://github.com/Amalll-Sec/router-vulnerability-research/blob/main/advisories/Tenda/W20E/formDelWebAuthWhiteUser/README.md |
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| Benutzer | AmaIIl (UID 29184) |
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| Einreichung | 04.08.2026 16:55 (vor 1 Monat) |
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| Moderieren | 13.09.2026 07:02 (1 month later) |
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| Status | Akzeptiert |
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| VulDB Eintrag | 403222 [Tenda W20E 15.11.0.61068_1546_841_CN_TDC formDelWebAuthWhiteUser webAuthWhiteUserIndex Pufferüberlauf] |
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| Punkte | 20 |
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