CVE-2026-19823 in W20E

Prediction

by VulDB Data Team • 08/14/2026

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.

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• Responsible: VulDB
• Moderation: accepted
• Entry: VDB-389956
• CPE: ready
• CWE: CWE-121 (confirmed)
• Exploit: Download
• CVSS: 8.8 (VulDB)
• EPSS: 0.00000
• KEV: no
• Activities: low
• Sector: Industry, Insurance, ...

Sources

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-19823
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-19823
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-19823/