CVE-2026-19823

Tenda W20E QoS Rule Deletion delQos formQOSRuleDel stack-based overflow

Published: Aug 14, 2026Updated: Aug 18, 2026 Sources: CVE List NVDCWE-119

8.8HIGH

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.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:LPrivileges Required

Low

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:HConfidentiality

High

I:HIntegrity

High

A:HAvailability

High

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Weaknesses

CWE-119 CWE-121

Affected Products

Tenda

commercial·CN

W20E

Networking Infrastructure

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques

Initial Access

Privilege Escalation

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References

https://github.com/paueger/mycve/blob/main/Tenda_W20E/4.md

github.com

https://vuldb.com/cve/CVE-2026-19823

vuldb.com

https://vuldb.com/submit/869021

vuldb.com

and 3 more references View all →

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