CVE-2023-5649 Denial of service in Brocade Active Support Connectivity Gateway

Medium 6.8 Published 8 Oct 2026 Updated 8 Oct 2026

A local authenticated user can cause a Denial of Service in Brocade ASCG by providing invalid inputs during supportsave collection.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-5649?

CVE-2023-5649 is a medium-severity denial of service vulnerability in Brocade Active Support Connectivity Gateway, 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

An Improper Input Validation vulnerability for the registered case credentials in Brocade ASCG before v3.0 could allow a local authenticated user to provide invalid inputs like special characters leading to a Denial of Service (DoS) when collecting “supportsave” from a Brocade Switch.

Weakness: CWE-20

Which versions are affected by CVE-2023-5649?

It affects 1 product.

Products include Broadcom Brocade Active Support Connectivity Gateway.

How do I fix CVE-2023-5649?

No fix has been published for CVE-2023-5649 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2023-5649 being exploited?

There is no known exploitation of CVE-2023-5649 in the wild and no public exploit code.

Sources

Also known as GHSA-p8j5-m292-rhr4.