CVE-2021-27797: Broadcom Fabric Operating System

Critical severity, CVSS 9.8. EPSS: 1.3% chance of exploitation in the next 30 days.

Brocade Fabric OS before Brocade Fabric OS v8.2.1c, v8.1.2h, and all versions of Brocade Fabric OS v8.0.x and v7.x contain documented hard-coded credentials, which could allow attackers to gain access to the system.

Affected products

• Broadcom Fabric Operating System: from 7.0.0, up to and including 7.4.2h; from 8.0.0, up to and including 8.0.2f; from 8.1.2, before 8.1.2h (fixed in 8.1.2h); from 8.2.1, before 8.2.1c (fixed in 8.2.1c)

Published 2022-02-21. Last modified 2026-06-17.