CVE-2023-31431: Broadcom Brocade Fabric Operating System

Medium severity, CVSS 5.5. EPSS: 0.3% chance of exploitation in the next 30 days.

A buffer overflow vulnerability in “diagstatus” command in Brocade Fabric OS before Brocade Fabric v9.2.0 and v9.1.1c could allow an authenticated user to crash the Brocade Fabric OS switch leading to a denial of service.

Affected products

• Broadcom Brocade Fabric Operating System: before 9.1.1c (fixed in 9.1.1c); version 9.2.0 only

Published 2023-08-02. Last modified 2026-06-17.