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CVE-2021-27792

7.8 · HIGH

The request handling functions in web management interface of Brocade Fabric OS versions before v9.0.1a, v8.2.3a, and v7.4.2h do not properly handle malformed user input, resulting in a service crash.

Published Aug 12, 2021EPSS 0.27%

Overview

CVE-2021-27792 is a high-severity vulnerability. It was published on August 12, 2021 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

The request handling functions in web management interface of Brocade Fabric OS versions before v9.0.1a, v8.2.3a, and v7.4.2h do not properly handle malformed user input, resulting in a service crash. An authenticated attacker could use this weakness to cause the FOS HTTP application handler to crash, requiring a reboot.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refsecurity.netapp.com/advisory/ntap-20210819-0002/Refwww.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2021-1490Refwww.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2021-1492Refsecurity.netapp.com/advisory/ntap-20210819-0002/Refwww.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2021-1490Refwww.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2021-1492

How CyberStrike helps

Frequently asked questions

What is CVE-2021-27792?

CVE-2021-27792 is a high-severity vulnerability. It was published on August 12, 2021 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2021-27792?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2021-27792?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2021-27792?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-27792 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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