---
cve: "CVE-2026-77683"
severity: "CRITICAL"
cvss: 9.4
epss: "1.5%"
vendor: "Comfast"
kev: false
exploited: false
published: "2026-08-21 11:17:06"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-21T18:26:51+02:00"
---

# CVE-2026-77683

> 9.4 CRITICAL · 🧪 PoC

## Beschreibung

A security flaw has been discovered in Comfast CF-N1-S 2.6.0.1. Affected by this issue is the function system of the file /cgi-bin/mbox-config?method=SET&section=ntp_timezone. The manipulation of the argument timestr results in command injection. The attack can be launched remotely. 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:H/SI:H/SA:H/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/394033>
- <https://vuldb.com/vuln/394033/cti>
- <https://vuldb.com/cve/CVE-2026-77683>
- <https://vuldb.com/submit/881058>
- <https://github.com/AdminSafe/CVE/issues/8>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-77683) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_