# CVE-2025-4663: Denial-of-Service (DoS) after Unusual or Exceptional Conditions vulnerability

> An authenticated attacker can cause a denial of service by interrupting a remote supportsave command via SSH.

- **Severity:** Medium 6.8 (`CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 8 Jul 2025
- **Updated:** 8 Jul 2025
- **Also known as:** GHSA-c5j5-q67x-gpcc

## What is CVE-2025-4663?

CVE-2025-4663 is a medium-severity denial of service vulnerability in Broadcom Fabric Operating System, published on 8 Jul 2025. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

An Improper Check for Unusual or 
Exceptional Conditions vulnerability in Brocade Fabric OS before 9.2.2.a
 could allow an authenticated, network-based attacker to cause a 
Denial-of-Service (DoS).
The
 vulnerability is encountered when supportsave is invoked remotely, 
using ssh command or SANnav inline ssh, and the corresponding ssh 
session is terminated with Control C (^c ) before supportsave 
completion.
This issue affects Brocade Fabric OS 9.0.0 through 9.2.2

Weakness: CWE-754 (Improper Check for Unusual or Exceptional Conditions)

## Which versions are affected by CVE-2025-4663?

It affects 1 product.


Products: Broadcom Fabric Operating System.

## How do I fix CVE-2025-4663?

No fix has been published for CVE-2025-4663 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-4663 being exploited?

There is no known exploitation of CVE-2025-4663 in the wild and no public exploit code.

## Other vulnerabilities in Broadcom Fabric Operating System

- [CVE-2025-1976](https://insights.sbomify.com/CVE-2025-1976/): Broadcom Brocade Fabric OS Code Injection (high 8.6, exploited in the wild)
- [CVE-2021-22555](https://insights.sbomify.com/CVE-2021-22555/): Linux Kernel Heap Out-of-Bounds Write (high 8.3, exploited in the wild)
- [CVE-2022-33186](https://insights.sbomify.com/CVE-2022-33186/): Command injection in Brocade Fabric OS (critical 9.8)
- [CVE-2021-27797](https://insights.sbomify.com/CVE-2021-27797/): Hardcoded credentials in Brocade Fabric OS (critical 9.8)
- [CVE-2020-15371](https://insights.sbomify.com/CVE-2020-15371/): Code injection in Brocade Fabric OS (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-4663 and fix it if it is affected.

What it is: CVE-2025-4663 is a medium-severity denial of service vulnerability in Broadcom Fabric Operating System, published on 8 Jul 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-4663 in the wild and no public exploit code.

Affected product: Broadcom Fabric Operating System. 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-2025-4663/ (Markdown: https://insights.sbomify.com/CVE-2025-4663/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-4663
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-4663
- OSV: https://osv.dev/vulnerability/CVE-2025-4663

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-4663/
Summaries are generated and may contain mistakes; the official description above is the record.