CVE-2026-87676: Fabric OS 0 to before 10.0.1

Affected technology

Fabric OS · 0 to before 10.0.1
Brocade

Description’s affected range: versions before 10.0.1

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 4.0): Adjacent network · Low privileges required · No user interaction required

What an attacker can do

An authenticated user with administrative privileges to import custom certificates can supply a certificate containing an intentionally oversized AKI extension. Vendor/CNA’s CVSS 4.0 assessment (base score 6.9/10) rates confidentiality and integrity impact as none; availability impact as high.