CVE-2026-87679 Memory corruption in Fabric OS
An authenticated administrator can trigger heap corruption via crafted REST API requests, leading to service crashes or arbitrary code execution.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-87679?
CVE-2026-87679 is a high-severity memory corruption vulnerability in Broadcom Fabric Operating System, published on 8 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
When Brocade Fabric OS versions before 10.0.1 processes trunk configuration operations, the application parses user-supplied list strings into dynamically allocated heap arrays without enforcing boundary checks on the maximum allowable number of elements. An authenticated administrator can exploit this vulnerability via crafted REST API requests containing an excessive number of list delimiters, causing heap corruption that can result in service crash or arbitrary code execution.
Weakness: CWE-122
Which versions are affected by CVE-2026-87679?
It affects 1 product.
Products include Broadcom Fabric Operating System.
How do I fix CVE-2026-87679?
No fix has been published for CVE-2026-87679 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-87679 being exploited?
There is no known exploitation of CVE-2026-87679 in the wild and no public exploit code.
Other vulnerabilities in Broadcom Fabric Operating System
Sources
Also known as GHSA-m9v3-m696-8866.