---
cve: "CVE-2026-3227"
severity: "HIGH"
cvss: 8.5
epss: "1.1%"
vendor: "TP Link Systems Inc."
kev: false
exploited: false
published: "2026-03-16 14:19:47"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-15T22:50:33+02:00"
---

# CVE-2026-3227

> 8.5 HIGH

## Beschreibung

A command injection vulnerability was identified in TP-Link TL-WR802N v4, TL-WR841N v14, and TL-WR840N v6 due to improper neutralization of special elements used in an OS command.  In the router configuration import function allows an authenticated attacker to upload a crafted configuration file that results in execution of OS commands with root privileges during port-trigger processing.  
Successful exploitation allows an authenticated attacker to execute system commands with root privileges, leading to full device compromise.

## CVSS-Vektor

```
CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
```

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

## Referenzen

- <https://www.tp-link.com/en/support/download/tl-wr802n/v4/#Firmware>
- <https://www.tp-link.com/us/support/download/tl-wr802n/v4/#Firmware>
- <https://www.tp-link.com/en/support/download/tl-wr841n/v14/#Firmware>
- <https://www.tp-link.com/us/support/download/tl-wr841n/v14/#Firmware>
- <https://www.tp-link.com/en/support/download/tl-wr840n/v6/#Firmware>
- <https://www.tp-link.com/us/support/faq/5018/>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-3227) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_