CVE-2026-87659 — Brocade / Fabric OS

Description (CNA)

A critical authorization bypass vulnerability exists in the Management Server handling of Brocade Fabric OS versions before 10.0.1. A compromised switch connected to the fabric can transmit crafted inband Fibre Channel vendor-unique CT (Common Transport) management requests to bypass administrative authentication. Successful exploitation allows an unauthorized peer switch to execute administrative actions on the target device, including resetting administrative passwords, initiating system reboots, and triggering firmware downloads.

Affected (CNA)

Vendor / product	Versions
Brocade / Fabric OS	affected 0 before 10.0.1

CWE

CWE-306

References

https://support.broadcom.com/external/content/SecurityAdvisories/0/39153

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.