CVE-2026-11523: Tenda w20e

High severity, CVSS 8.8. EPSS: 0.5% chance of exploitation in the next 30 days.

A flaw has been found in Tenda W20E 15.11.0.6. This issue affects the function formPortalAuth of the file /goform/PortalAuth of the component Web Management Interface. Executing a manipulation of the argument gotoUrl can lead to stack-based buffer overflow. The attack can be launched remotely. The exploit has been published and may be used.

Affected products

• Tenda w20e: version 15.11.0.6 only

Published 2026-06-08. Last modified 2026-07-23.