---
id: CVE-2025-9581
title: A vulnerability was detected in Comfast CF-N1 2.6.0
summary: >-
  A vulnerability was detected in Comfast CF-N1 2.6.0. This impacts the function
  multi_pppoe of the file /usr/bin/webmgnt. Performing manipulation of the
  argument phy_interface results in command injection. The attack may be
  initiated remo…
severity: medium
cvss: 6.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L'
cwe:
  - CWE-74
  - CWE-77
  - CWE-77
vendor: comfast
product: cf-n1_firmware
affected:
  - cf-n1_firmware = 2.6.0
published: '2025-08-28'
updated: '2026-09-26'
sourceUpdated: '2026-09-26T00:10:00.127'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-9581'
references:
  - url: 'https://github.com/ZZ2266/.github.io/tree/main/COMFAST/N1V2/multi_pppoe'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/?ctiid.321694'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/?id.321694'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/?submit.636127'
    label: cna@vuldb.com
  - url: 'https://github.com/ZZ2266/.github.io/tree/main/COMFAST/N1V2/multi_pppoe'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
epss: 0.05309
epssPercentile: 0.92296
ingestedAt: '2026-09-26T00:22:39.893Z'
---

## Overview

A vulnerability was detected in Comfast CF-N1 2.6.0. This impacts the function multi_pppoe of the file /usr/bin/webmgnt. Performing manipulation of the argument phy_interface results in command injection. The attack may be initiated remotely. The exploit is now public and may be used.

## Affected

- `cf-n1_firmware = 2.6.0`

## Remediation

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