Brocade Fabric OS up to 9.2.2c/10.0.0a1 PAM Session Cleanup os command injection

Summaryinfo

A vulnerability classified as very critical was found in Brocade Fabric OS up to 9.2.2c/10.0.0a1. This issue affects some unknown processing of the component PAM Session Cleanup. The manipulation results in os command injection. This vulnerability is cataloged as CVE-2026-94579. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as very critical, was found in Brocade Fabric OS up to 9.2.2c/10.0.0a1. Affected is an unknown function of the component PAM Session Cleanup. The manipulation with an unknown input leads to a os command injection vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

An OS command injection vulnerability exists in the PAM (Pluggable Authentication Module) session cleanup routines during SSH session termination on Brocade Fabric OS versions before 9.2.2d and 10.0.0 through 10.0.0a1. An authenticated user authenticating via an external directory or AAA service whose username or profile identifier contains shell metacharacters can trigger arbitrary command execution with root privileges when their remote SSH session closes.

The advisory is available at support.broadcom.com. This vulnerability is traded as CVE-2026-94579 since 09/21/2026. The exploitability is told to be easy. It is possible to launch the attack 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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