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8.5

Brocade Fabric OS permits command execution via certificate API

CVE-2026-87688 · published 28 days ago
Summary

The certificate management feature in Brocade Fabric OS versions before 9.2.2d and 10.0.0 through 10.0.0a1 does not properly clean user‑provided identifiers. A user who can delete certificates could cause the system to run any command the management service can run. Update to the fixed software releases or limit certificate‑deletion rights until the patch is applied.

What to do
  • Update brocade fabric os to version 9.2.2d or later.
Affected software
VendorProductAffected versions
brocade fabric os < 9.2.2d
broadcom fabric_operating_system < 9.2.2d
>= 10.0.0, < 10.0.1
cpe:2.3:o:broadcom:fabric_operating_system:*:*:*:*:*:*:*:*
Original advisory text
An input validation vulnerability exists in the security certificate management component of the Brocade Fabric OS administrative management API. When processing certificate management operations, ...
An input validation vulnerability exists in the security certificate management component of the Brocade Fabric OS administrative management API. When processing certificate management operations, user-supplied certificate identifiers are handled without adequate sanitization prior to execution in external system routines. An authenticated attacker with privileges to perform certificate deletion requests can leverage this flaw to execute arbitrary system commands with the privileges of the underlying management daemon. This vulnerability affects Fabric OS versions before 9.2.2d and 10.0.0 through 10.0.0a1.
References
Fix within
Internet-facing 14 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit (estimated)
  • Gives an attacker full control (estimated)
Severity
8.5 High
Exploitation
<1% chance of attack within 30 days
Type
CWE-77Command Injection
Timeline
Published8 Oct 2026
Updated26 Oct 2026
First seen8 Oct 2026
Sources
CVE-2026-87688 · NVD
CVE-2026-87688 · MITRE
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