---
title: "CVE-2026-87673: Brocade Fabric OS - Command Injection"
description: "Brocade Fabric OS < 9.2.2d and 10.0.0 through 10.0.0a1 contain an OS command injection caused by unsanitized input in maintenance command-line diagnostic utilities, letting privileged maintenance users execute arbitrary OS commands as root."
url: https://panop.io/threat-heartbeat/CVE-2026-87673/
---

# CVE-2026-87673 Brocade Fabric OS - Command Injection

Brocade Fabric OS < 9.2.2d and 10.0.0 through 10.0.0a1 contain an OS command injection caused by unsanitized input in maintenance command-line diagnostic utilities, letting privileged maintenance users execute arbitrary OS commands as root.

CVSS base score 7.2 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

EPSS

0.90% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-87673)

## Details

Type

Command Injection

Impact

Remote Code Execution, Privilege Escalation

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Published

8 October 2026

Updated

15 October 2026

Weakness

[CWE-78](https://cwe.mitre.org/data/definitions/78.html)

## Vendor fix

Update to version 9.2.2d or later, or versions after 10.0.0a1.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-87673](https://nvd.nist.gov/vuln/detail/CVE-2026-87673)
- [https://support.broadcom.com/external/content/SecurityAdvisories/0/39144](https://support.broadcom.com/external/content/SecurityAdvisories/0/39144)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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