CVE-2021-27796

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-02-21 · updated 2026-06-17

Description

A vulnerability in Brocade Fabric OS versions before Brocade Fabric OS v8.0.1b, v7.4.1d could allow an authenticated attacker within the restricted shell environment (rbash) as either the “user” or “factory” account, to read the contents of any file on the filesystem utilizing one of a few available binaries.

Affected products

Brocade Fabric OS: before 7.4.1d; from 8.0.0 before 8.0.1b — fixed in 7.4.1d, 8.0.1b

How to fix

Upgrade to a fixed version: Brocade Fabric OS 7.4.1d, 8.0.1b. Check the vendor advisory for mitigations.

References

https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2021-1721
https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2021-1721

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