CVE-2021-27797

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-02-21 · updated 2026-06-17
Weakness: CWE-798

Description

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

Brocade Fabric OS: from 7.0.0 through 7.4.2h; from 8.0.0 through 8.0.2f; from 8.1.2 before 8.1.2h; from 8.2.1 before 8.2.1c — fixed in 8.1.2h, 8.2.1c

How to fix

Upgrade to a fixed version: Brocade Fabric OS 8.1.2h, 8.2.1c. Check the vendor advisory for mitigations.

References

https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2021-1722
https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2021-1722

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