CVE-2026-19822CWE-119CWE-121

CVE-2026-19822

High · published August 14, 2026

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

A vulnerability was identified in Tenda W20E 15.11.0.6(1068_1546_841)_CN_TDC. This issue affects the function lstAdd of the file /goform/editQos of the component QoS Edit. Such manipulation of the argument qosListConnecttedNum leads to stack-based buffer overflow. The attack may be launched remotely. The exploit is publicly available and might be used.

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
2026-08-14T16:16Z
References (6)
https://github.com/paueger/mycve/blob/main/Tenda_W20E/3.md · [email protected]https://vuldb.com/cve/CVE-2026-19822 · [email protected]https://vuldb.com/submit/869006 · [email protected]https://vuldb.com/vuln/389955 · [email protected]https://vuldb.com/vuln/389955/cti · [email protected]https://www.tenda.com.cn/ · [email protected]
EPSS history
Timeline
  • 14 AUG 11:30Z
    Tenda W20E QoS Edit editQos lstAdd stack-based overflow
    cvelistv5