CVE-2026-87668

Medium

Description

A stack-based buffer overflow vulnerability exists in the diagnostic execution utility of Brocade Fabric OS versions before 10.0.1. When processing command arguments for diagnostic operations, the utility tokenizes user-supplied input into an internal argument array without enforcing boundary checks on the maximum array capacity. An authenticated user with administrative access can exploit this vulnerability by supplying a crafted diagnostic command string containing an excessive number of tokenized arguments. This leads to a memory overwrite resulting in a denial of service (process crash).

SeverityMedium
CVSS6.5
Exploit probability—
ProductBroadcom Fabric Operating System
PublishedOct 8, 2026
First seenOct 8, 2026
Weakness typeCWE-121CWE-121

How to fix

Update
  • broadcom fabric_operating_system10.0.1 or later

Affected products

ProductAffected versionsFixed in
broadcom fabric_operating_systemv < 10.0.110.0.1

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.

CVE-2026-87668 · Broadcom Fabric Operating System · Dark Radar