---
cve: "CVE-2026-19821"
severity: "HIGH"
cvss: 8.7
epss: "47%"
vendor: "Tenda"
kev: false
exploited: false
published: "2026-08-14 11:16:57"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-13T23:49:57+02:00"
---

# CVE-2026-19821

> 8.7 HIGH · 🧪 PoC

## Beschreibung

A vulnerability was determined in Tenda AC12 15.03.06.23_multi_TD01. This vulnerability affects the function formSetRebootTimer of the file /goform/SetSysAutoRebbotCfg of the component httpd web management interface. This manipulation of the argument rebootTime causes buffer overflow. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized.

## 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/389954>
- <https://vuldb.com/vuln/389954/cti>
- <https://vuldb.com/cve/CVE-2026-19821>
- <https://vuldb.com/submit/868922>
- <https://github.com/lipenghai/iot_bug/blob/main/Tenda/AC12/4.md>
- <https://www.tenda.com.cn/>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-19821) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_