Unprivileged Local Execution of Kernel-Level Diagnostic Tests within Brocade Fabric OS
39155
06 October 2026
06 October 2026
CLOSED
HIGH
7.0 - CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
CVE-2026-87660
|
Brocade Security Advisory ID |
BSA-2026-3962 |
|
Component |
Fabric OS Diagnostics |
|
CWE |
CWE-732: Incorrect Permission Assignment for Critical Resource |
|
|
|
Summary:
An improper file permission and missing authorization vulnerability exists in the diagnostic kernel module subsystem of Brocade Fabric OS versions before 9.2.2d and 10.0.0 through 10.0.0a1. An unprivileged local user can invoke privileged hardware tests, force system error conditions, reset hardware blades, or disrupt storage fabric operations.
Products Affected
- Brocade Fabric OS versions before 9.2.2d and 10.0.0 through 10.0.0a1
Products Not Affected
- Brocade SANnav is not affected by this vulnerability
[VEX Justification: Component_not_present] - Brocade ASCG is not affected by this vulnerability
[VEX Justification: Component_not_present]
Solution
- A security update is provided in Brocade Fabric OS 9.2.2d and 10.0.1
Note: This is a Frontier AI discovered vulnerability.
Revision History
|
Version |
Change |
Date |
|
1.0 |
Initial Publication |
October 6, 2026 |
Disclaimer
THIS DOCUMENT IS PROVIDED ON AN AS-IS BASIS SOLELY FOR INFORMATIONAL PURPOSES AND DOES NOT IMPLY ANY KIND OF GUARANTY OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. YOUR USE OF THE INFORMATION CONTAINED HEREIN IS AT YOUR OWN RISK. ALL INFORMATION PROVIDED HEREIN IS BASED ON BROCADE'S CURRENT KNOWLEDGE AND UNDERSTANDING OF THE VULNERABILITY AND IMPACT TO BROCADE HARDWARE AND SOFTWARE PRODUCTS. BROCADE RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.