CVE-2026-19822: Tenda W20E QoS Edit editQos lstAdd stack-based overflow

Published Aug 14, 2026
·
Updated

A vulnerability was identified in Tenda W20E 15.11.0.6(10681546841)CNTDC. This issue affects the function lstAdd of the file /goform/editQos of the component QoS Edit. Such manipulation of the argument qosListConnecttedNum leads to stack-based buffer overflow. The attack may be launched remotely. The exploit is publicly available and might be used.

Affected Software

1 affected component
Tenda W20E=15.11.0.6(1068_1546_841)_CN_TDC

Event History

Aug 14, 2026
CVE Published
via MITRE·11:30 AM
Data Sourced
via MITRE·11:30 AM
DescriptionSeverityWeakness
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Frequently Asked Questions

1

What is the severity of CVE-2026-19822?

The severity of CVE-2026-19822 is rated as high with a score of 8.8.

2

How do I fix CVE-2026-19822?

To fix CVE-2026-19822, update Tenda W20E to the latest firmware version that addresses this vulnerability.

3

What type of vulnerability is CVE-2026-19822?

CVE-2026-19822 is classified as a buffer overflow vulnerability.

4

Can CVE-2026-19822 be exploited remotely?

Yes, CVE-2026-19822 can be exploited remotely, allowing an attacker to manipulate the qosListConnecttedNum.

5

What component is affected by CVE-2026-19822?

CVE-2026-19822 affects the QoS Edit function lstAdd in the Tenda W20E.

Company

Resources

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CVE-2026-19822 - Tenda W20E QoS Edit editQos lstAdd stack-based overflow - SecAlerts