CVE-2026-19822

Name of the Vulnerable Software and Affected Versions Tenda W20E version 15.11.0.6(1068 1546 841) CN TDC

Description A stack-based buffer overflow occurs in the QoS Edit component when the lstAdd() function in the '/goform/editQos' endpoint processes a manipulated qosListConnecttedNum argument. This issue allows for remote attacks.

Recommendations As a temporary workaround, restrict access to the '/goform/editQos' endpoint or avoid using the qosListConnecttedNum argument until a fix is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.