---
id: CVE-2026-87673
title: >-
  An OS command injection vulnerability exists in maintenance command-line
  diagnostic utilities on Brocade Fabric OS versions before 9.2.2d and 10.0.0
  through 10.0.0a1
summary: >-
  An OS command injection vulnerability exists in maintenance command-line
  diagnostic utilities on Brocade Fabric OS versions before 9.2.2d and 10.0.0
  through 10.0.0a1. The binary fails to sanitize user-supplied input options
  when invoking…
severity: high
cvss: 7
cvssVector: 'CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'
cwe:
  - CWE-78
vendor: Brocade
product: Fabric OS
affected:
  - fabric_os < 9.2.2d
  - fabric_os >= 10.0.0 <= 10.0.0a1
published: '2026-10-08'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T04:17:53.117'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-87673'
references:
  - url: 'https://support.broadcom.com/external/content/SecurityAdvisories/0/39144'
    label: sirt@brocade.com
tags:
  - nvd
  - cve.org
cvssSource: cna
ingestedAt: '2026-10-08T04:04:32.124Z'
---

## Overview

An OS command injection vulnerability exists in maintenance command-line diagnostic utilities on Brocade Fabric OS versions before 9.2.2d and 10.0.0 through 10.0.0a1. The binary fails to sanitize user-supplied input options when invoking underlying system commands through a shell interpreter. A privileged user with maintenance account access can exploit this issue by supplying crafted parameters, which results in arbitrary OS command execution with root privileges.

## Remediation

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