CVE-2021-27795: Broadcom Fabric Operating System

High severity, CVSS 8.1. EPSS: 0.2% chance of exploitation in the next 30 days.

Brocade Fabric OS (FOS) hardware platforms running any version of Brocade Fabric OS software, which supports the license string format; contain cryptographic issues that could allow for the installation of forged or fraudulent license keys. This would allow attackers or a malicious party to forge a counterfeit license key that the Brocade Fabric OS platform would authenticate and activate as if it were a legitimate license key.

Affected products

• Broadcom Fabric Operating System: any version

Published 2023-12-06. Last modified 2026-06-17.