---
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: 7.2
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-78
vendor: broadcom
product: fabric_operating_system
affected:
  - fabric_operating_system < 9.2.2d
  - 'fabric_operating_system >= 10.0.0, < 10.0.1'
patched:
  - fabric_operating_system 10.0.1
published: '2026-10-08'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T19:12:50.530'
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
epss: 0.01789
epssPercentile: 0.78233
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-08T13:13:03.424762Z'
scores:
  nvd: 7.2
  cna: 7
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.

## Affected

- `fabric_operating_system < 9.2.2d`
- `fabric_operating_system >= 10.0.0, < 10.0.1`

## Remediation

Upgrade past the affected range:

- `fabric_operating_system 10.0.1`