Vulnerability in Brocade Fabric OS

[ Description ]Official description

An authorization and input validation vulnerability exists in Brocade Fabric OS versions before 9.2.2d and 10.0.0 through 10.0.0a1. An authenticated user with restricted privileges in one Virtual Fabric can exploit this issue by submitting a specially crafted request containing an arbitrary fabric identifier. This allows the user to perform unauthorized cross-fabric operations and view configuration details within tenants/Virtual Fabrics to which they have not been granted access.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

• BSI CERT-Bund6 Oct 2026WID-SEC-2026-3779

  Broadcom Fabric OS: Multiple vulnerabilities Translated from German

  CVE-2026-87681CVE-2026-87684CVE-2026-87687+5 more CVEs

[ References ]References

• support.broadcom.com/external/content/SecurityAdvisories/0/39081Vendor Advisory