CVE-2021-27796

Name: CVE-2021-27796
Creator: NVD / NIST
Published: 2022-02-21T18:15:08.407+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.89%

Last modified Jun 17, 2026

CVE-2021-27796 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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.. EPSS estimates a 0.89% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

0.89%

54.9th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Broadcom	Fabric Operating System	< 7.4.1d
Broadcom	Fabric Operating System	>= 8.0.0, < 8.0.1b

References

Timeline

Published: Feb 21, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-27796?

How severe is CVE-2021-27796?

CVE-2021-27796 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.89% probability of exploitation in the next 30 days.

How do I fix CVE-2021-27796?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-27796?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST