# CVE-2026-85423: A vulnerability has been identified in the data collection service of Brocade ASCG versions before 3.5.0.


- **Severity:** High 8.6 (`CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Fix available:** No
- **Published:** 8 Oct 2026
- **Updated:** 8 Oct 2026
- **Also known as:** GHSA-qrmf-pmg6-m84c

## What is CVE-2026-85423?

CVE-2026-85423 is a high-severity vulnerability in Brocade Active Support Connectivity Gateway, published on 8 Oct 2026. 

### Official description

A vulnerability has been identified in the data collection service of Brocade ASCG versions before 3.5.0. An API endpoint within the data collector service fails to perform authentication or authorization checks on incoming requests. An attacker with network access to the service can instruct the application to establish SSH connections to arbitrary hosts and execute arbitrary system commands, effectively turning the appliance into an unauthenticated proxy or execution vector.

Weakness: CWE-306 (Missing Authentication for Critical Functionality)

## Which versions are affected by CVE-2026-85423?

It affects 1 product.


Products: Broadcom Brocade Active Support Connectivity Gateway.

## How do I fix CVE-2026-85423?

No fix has been published for CVE-2026-85423 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-85423 being exploited?

There is no known exploitation of CVE-2026-85423 in the wild and no public exploit code.

## Other vulnerabilities in Brocade Active Support Connectivity Gateway

- [CVE-2026-85421](https://insights.sbomify.com/CVE-2026-85421/): Missing authorization in Brocade Active Support Connectivity Gateway (high 8.7)
- [CVE-2026-85489](https://insights.sbomify.com/CVE-2026-85489/): Missing authorization in Brocade Active Support Connectivity Gateway (high 8.7)
- [CVE-2026-85486](https://insights.sbomify.com/CVE-2026-85486/): Code injection in Brocade Active Support Connectivity Gateway (high 8.6)
- [CVE-2026-85487](https://insights.sbomify.com/CVE-2026-85487/): Path traversal in Brocade Active Support Connectivity Gateway (high 8.6)
- [CVE-2026-87424](https://insights.sbomify.com/CVE-2026-87424/): A vulnerability in the SupportLink API authentication component of Brocade ASCG versions prior to 3.5.0 allows an attacker to bypass authent (high 8.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-85423 and fix it if it is affected.

What it is: CVE-2026-85423 is a high-severity vulnerability in Brocade Active Support Connectivity Gateway, published on 8 Oct 2026. 
Exploitation: There is no known exploitation of CVE-2026-85423 in the wild and no public exploit code.

Affected product: Brocade Active Support Connectivity Gateway. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-85423/ (Markdown: https://insights.sbomify.com/CVE-2026-85423/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-85423
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-85423
- OSV: https://osv.dev/vulnerability/CVE-2026-85423

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-85423/
Summaries are generated and may contain mistakes; the official description above is the record.