AUGUST 5, 2026
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Case File

CVE-2021-27791

MEDIUM · CVSS 5.4 EPSS 0.60%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-08-12 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 5.4. Exploitation may require the attacker to be authenticated.

CVE
CVE-2021-27791
Severity
MEDIUM
CVSS
5.4
EPSS
0.60%

Original NVD Description

The function that is used to parse the Authentication header in Brocade Fabric OS Web application service before Brocade Fabric OS v9.0.1a and v8.2.3a fails to properly process a malformed authentication header from the client, resulting in reading memory addresses outside the intended range. An unauthenticated attacker could discover a request, which could bypass the authentication process.

Related CVEs

Other vulnerabilities affecting the same vendor(s)