---
id: CVE-2026-94138
title: >-
  A security flaw has been discovered in Chengdu Feiyuxing Technology Feiyu Star
  Router B-MB5E202-210322-r11656
summary: >-
  A security flaw has been discovered in Chengdu Feiyuxing Technology Feiyu Star
  Router B-MB5E202-210322-r11656. This impacts an unknown function of the file
  /send_order.cgi?parameter=del_expmac. The manipulation of the argument mac
  result…
severity: medium
cvss: 6.6
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L'
cwe:
  - CWE-74
  - CWE-77
vendor: Chengdu Feiyuxing Technology
product: Feiyu Star Router
affected:
  - feiyu_star_router B-MB5E202-210322-r11656
published: '2026-09-21'
updated: '2026-09-21'
sourceUpdated: '2026-09-21T16:17:29.030'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-94138'
references:
  - url: >-
      https://uvxbywu62qm.feishu.cn/wiki/UJfEwIEjJijyHskIuxccnHkTnmh?from=from_copylink
    label: cna@vuldb.com
  - url: 'https://vuldb.com/cve/CVE-2026-94138'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/893913'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/408055'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/408055/cti'
    label: cna@vuldb.com
tags:
  - nvd
  - cve.org
  - exploit-available
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-21T15:57:57.925892Z'
epss: 0.02055
epssPercentile: 0.80461
ingestedAt: '2026-09-21T04:31:23.196Z'
---

## Overview

A security flaw has been discovered in Chengdu Feiyuxing Technology Feiyu Star Router B-MB5E202-210322-r11656. This impacts an unknown function of the file /send_order.cgi?parameter=del_expmac. The manipulation of the argument mac results in command injection. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

## Remediation

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