CVE-2026-87428 Information disclosure in Brocade Active Support Connectivity Gateway

High 8.4 Published Updated

Local unauthorized users can extract stored management credentials from Brocade ASCG, potentially compromising connected SANnav servers and Fibre Channel switches.

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-2026-87428?

CVE-2026-87428 is a high-severity 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

In Brocade ASCG before 3.5.0, a  local unauthorized user on the ASCG VM who can issue a request to the SANnav host network namespace can extract stored management credentials for onboarded SANnav instances and compromise connected Brocade SANnav servers or managed Brocade Fibre Channel switches.

Weakness: CWE-522

Which versions are affected by CVE-2026-87428?

It affects 1 product.

Products include Broadcom Brocade Active Support Connectivity Gateway.

How do I fix CVE-2026-87428?

No fix has been published for CVE-2026-87428 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-87428 being exploited?

There is no known exploitation of CVE-2026-87428 in the wild and no public exploit code.

Sources

Also known as GHSA-q55c-8wc9-gmhv.

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