CVE-2026-19823: Tenda w20e

High severity, CVSS 8.8. EPSS: 0.9% chance of exploitation in the next 30 days.

A security flaw has been discovered in Tenda W20E 15.11.0.6(1068_1546_841)_CN_TDC. Impacted is the function formQOSRuleDel of the file /goform/delQos of the component QoS Rule Deletion. Performing a manipulation of the argument qosIndex results in stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been released to the public and may be used for attacks.

Affected products

• Tenda w20e: version 15.11.0.6(1068_1546_841)_CN_TDC only

Published 2026-08-14. Last modified 2026-08-18.