| Titel | Tenda Router US_W20EV4.0br_V15.11.0.61068_1546_841_CN_TDC Memory Corruption |
|---|
| Beschreibung | Tenda W20E firmware US_W20EV4.0br_V15.11.0.61068_1546_841_CN_TDC contains a stack-based buffer overflow in the formQOSRuleDel HTTP handler. The handler retrieves the attacker-controlled qosIndex parameter using websGetVar() and copies it into fixed-size stack buffer using strcpy() 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. |
|---|
| Quelle | ⚠️ https://github.com/Amalll-Sec/router-vulnerability-research/blob/main/advisories/Tenda/W20E/formQOSRuleDel/README.md |
|---|
| Benutzer | AmaIIl (UID 29184) |
|---|
| Einreichung | 04.08.2026 16:09 (vor 1 Monat) |
|---|
| Moderieren | 13.09.2026 06:58 (1 month later) |
|---|
| Status | Duplikat |
|---|
| VulDB Eintrag | 389956 [Tenda W20E 15.11.0.6(1068_1546_841)_CN_TDC QoS Rule Deletion /goform/delQos formQOSRuleDel qosIndex Pufferüberlauf] |
|---|
| Punkte | 0 |
|---|