CVE-2026-19823
High
Description
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.
SeverityHigh
CVSS8.8
Exploit probability—
ProductTenda W20e Firmware
PublishedAug 14, 2026
First seenAug 14, 2026
Weakness typeCWE-121CWE-121CWE-119Memory buffer bounds error
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| tenda w20e_firmware | 15.11.0.6(1068_1546_841)_CN_TDC | — |
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