Brocade Fabric OS up to 9.2.2c/10.0.0a1 Download Protocol os command injection

Summaryinfo

A vulnerability was found in Brocade Fabric OS up to 9.2.2c/10.0.0a1 and classified as very critical. This affects an unknown function of the component Download Protocol Handler. Executing a manipulation can lead to os command injection. This vulnerability appears as CVE-2026-87662. The attack may be performed from remote. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Brocade Fabric OS up to 9.2.2c/10.0.0a1. It has been declared as very critical. This vulnerability affects an unknown code of the component Download Protocol Handler. The manipulation with an unknown input leads to a os command injection vulnerability. The CWE definition for the vulnerability is CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Brocade Fabric versions before 9.2.2d and 10.0.0 through 10.0.0a1 handling of specific download protocols utilizes unsanitized parameter strings. When processing upgrade requests, parameters are converted into system command strings and executed through a system shell interface. Because control characters and shell metacharacters in fields like the host or file path are not stripped or sanitized, an attacker can execute arbitrary shell commands with the firmware management daemon's elevated privileges.

The advisory is available at support.broadcom.com. This vulnerability was named CVE-2026-87662 since 09/09/2026. The exploitation appears to be easy. The attack can be initiated remotely. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 10/08/2026). This vulnerability is assigned to T1202 by the MITRE ATT&CK project.

Upgrading to version 9.2.2d eliminates this vulnerability.

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Productinfo

Vendor

• Brocade

Name

• Fabric OS

Version

• 9.2.2a
• 9.2.2b
• 9.2.2c
• 10.0.0a1

License

• commercial

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CPE 2.2info

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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