CVE-2026-87677 Command injection in Fabric OS
An attacker with admin privileges can execute arbitrary commands via malformed account names during account deletion in Brocade Fabric OS.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-87677?
CVE-2026-87677 is a medium-severity command injection vulnerability in Broadcom Fabric Operating System, published on 8 Oct 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
An OS command injection vulnerability exists in the account management subsystem of Brocade Fabric OS versions before 9.2.2d and 10.0.0 through 10.0.0a1. When an administrator initiates an account deletion, the system invokes an internal maintenance routine to clean up cryptographic keys associated with the target account. Malformed account names previously accepted by Fabric OS can cause the execution of embedded shell metacharacters, triggering command injection.
Weakness: CWE-78
Which versions are affected by CVE-2026-87677?
It affects 1 product.
Products include Broadcom Fabric Operating System.
How do I fix CVE-2026-87677?
No fix has been published for CVE-2026-87677 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-87677 being exploited?
There is no known exploitation of CVE-2026-87677 in the wild and no public exploit code.
Other vulnerabilities in Broadcom Fabric Operating System
Sources
Also known as GHSA-fw7w-5rwg-xvrv.