What is CVE-2021-27793?

CVE-2021-27793 is a medium-severity vulnerability in Broadcom Fabric Operating System, classified under Incorrect Authorization. CVSS score: 5.3/10. Published 2021-08-12.

How severe is CVE-2021-27793?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Auth bypass in Broadcom Fabric Operating System

CVE-2021-27793

ntermittent authorization failure in aaa tacacs+ with Brocade Fabric OS versions before Brocade Fabric OS v9.0.1b and after 9.0.0, also in Brocade Fabric OS before Brocade Fabric OS v8.2.3a and after v8.2.0 could cause a user with a valid account to be unable to log into the switch.

Vulnerability class: Broken Access Control

EPSS: 0.009 (56.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Broadcom Fabric_operating_system — versions 8.2.3, 9.0.1, 9.0.1a
N/a Brocade Fabric Os — versions Versions before Brocade Fabric OS v9.0.1b and after 9.0.0, also before Brocade Fabric OS v8.2.3a and after v8.2.0

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

sirt@brocade.com (x_refsource_MISC, Vendor Advisory)
sirt@brocade.com (x_refsource_CONFIRM, Third Party Advisory)

Frequently asked questions

What is CVE-2021-27793?: CVE-2021-27793 is a medium-severity vulnerability in Broadcom Fabric Operating System, classified under Incorrect Authorization. CVSS score: 5.3/10. Published 2021-08-12.
How severe is CVE-2021-27793?: Medium severity. CVSS v3 base score is 5.3 out of 10.