---
id: CVE-2026-77683
title: A security flaw has been discovered in Comfast CF-N1-S 2.6.0.1
summary: >-
  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 i…
severity: critical
cvss: 9.9
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'
cwe:
  - CWE-74
  - CWE-77
published: '2026-08-21'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T15:10:00.103'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-77683'
references:
  - url: 'https://github.com/AdminSafe/CVE/issues/8'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/cve/CVE-2026-77683'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/881058'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/394033'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/394033/cti'
    label: cna@vuldb.com
tags:
  - nvd
epss: 0.02889
epssPercentile: 0.86814
ingestedAt: '2026-10-27T18:52:09.908Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.