---
id: CVE-2026-87425
title: >-
  An unauthenticated remote attacker can modify the TLS client trust store in
  Brocade ASCG versions before 3.5.0
summary: >-
  An unauthenticated remote attacker can modify the TLS client trust store in
  Brocade ASCG versions before 3.5.0. By supplying an unauthorized Certificate
  Authority (CA) certificate to an unauthenticated management interface, the
  attacker …
severity: high
cvss: 7.6
cvssVector: 'CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'
cwe:
  - CWE-295
vendor: Brocade
product: Brocade Active Support Connectivity Gateway
affected:
  - active_support_connectivity_gateway < 3.5.0
published: '2026-10-08'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T07:16:33.140'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-87425'
references:
  - url: 'https://support.broadcom.com/external/content/SecurityAdvisories/0/38392'
    label: sirt@brocade.com
tags:
  - nvd
  - cve.org
cvssSource: cna
ingestedAt: '2026-10-08T09:24:17.662Z'
---

## Overview

An unauthenticated remote attacker can modify the TLS client trust store in Brocade ASCG versions before 3.5.0. By supplying an unauthorized Certificate Authority (CA) certificate to an unauthenticated management interface, the attacker can cause the system to trust unauthorized certificates, potentially enabling Man-in-the-Middle (MITM) attacks against outbound communications with managed switches and peer nodes.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.