| Title | 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 formIPMacBindDel HTTP handler. The handler retrieves the attacker-controlled IPMacBindIndex parameter using websGetVar() and copies it into the 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. |
|---|
| Source | ⚠️ https://github.com/Amalll-Sec/router-vulnerability-research/tree/main/advisories/Tenda/W20E/formIPMacBindDel |
|---|
| User | AmaIIl (UID 29184) |
|---|
| Submission | 08/04/2026 16:38 (1 month ago) |
|---|
| Moderation | 09/13/2026 06:59 (1 month later) |
|---|
| Status | Duplicate |
|---|
| VulDB entry | 209434 [Tenda W20E 15.11.0.6 /goform/delIpMacBind/ formIPMacBindDel stack-based overflow] |
|---|
| Points | 0 |
|---|