CVE-2026-19823

HIGH 8.8

Tenda W20E QoS Rule Deletion delQos formQOSRuleDel stack-based overflow

CVSS Score

8.8

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-121 CWE-119
Vendor	tenda
Product	w20e
Published	Aug 14, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Tenda / W20E

15.11.0.6(1068_1546_841)_CN_TDC

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/389956 vuldb.com: https://vuldb.com/vuln/389956/cti vuldb.com: https://vuldb.com/cve/CVE-2026-19823 vuldb.com: https://vuldb.com/submit/869021 github.com: https://github.com/paueger/mycve/blob/main/Tenda_W20E/4.md tenda.com.cn: https://www.tenda.com.cn/

Credits

🔍 paxiot (VulDB User)