---
cve: "CVE-2026-19823"
severity: "HIGH"
cvss: 8.7
epss: "0.5%"
vendor: "Tenda"
kev: false
exploited: false
published: "2026-08-14 13:17:37"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-20T06:35:28+02:00"
---

# CVE-2026-19823

> 8.7 HIGH · 🧪 PoC

## Beschreibung

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.

## CVSS-Vektor

```
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
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |

## Referenzen

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

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-19823) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_