| Titre | Tenda Router US_W20EV4.0br_V15.11.0.61068_1546_841_CN_TDC Memory Corruption |
|---|
| Description | 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. |
|---|
| La source | ⚠️ https://github.com/Amalll-Sec/router-vulnerability-research/blob/main/advisories/Tenda/W20E/formDelWebAuthWhiteUser/README.md |
|---|
| Utilisateur | AmaIIl (UID 29184) |
|---|
| Soumission | 04/08/2026 16:55 (il y a 1 mois) |
|---|
| Modérer | 13/09/2026 07:02 (1 month later) |
|---|
| Statut | Accepté |
|---|
| Entrée VulDB | 403222 [Tenda W20E 15.11.0.61068_1546_841_CN_TDC formDelWebAuthWhiteUser webAuthWhiteUserIndex buffer overflow] |
|---|
| Points | 20 |
|---|