CVE-2026-19823CWE-119CWE-121

CVE-2026-19823

High · published August 14, 2026

CVSS v3.1
8.8
EPSS
1%
Percentile
57.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
8.7 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
EPSS
0.00854 · 57.9th percentile
Weaknesses
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer; CWE-121 · Stack-based Buffer Overflow
Published
2026-08-14T17:17Z
References (6)
https://github.com/paueger/mycve/blob/main/Tenda_W20E/4.md · [email protected]https://vuldb.com/cve/CVE-2026-19823 · [email protected]https://vuldb.com/submit/869021 · [email protected]https://vuldb.com/vuln/389956 · [email protected]https://vuldb.com/vuln/389956/cti · [email protected]https://www.tenda.com.cn/ · [email protected]
EPSS history
Timeline
  • 14 AUG 12:15Z
    Tenda W20E QoS Rule Deletion delQos formQOSRuleDel stack-based overflow
    cvelistv5