# CVE-2020-15386: Denial of service in Brocade Fabric OS

> Brocade Fabric OS devices may experience high CPU load and slow response times during security scanning, potentially degrading operational performance.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 9 Jun 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-52mw-589c-4mv9

## What is CVE-2020-15386?

CVE-2020-15386 is a medium-severity denial of service vulnerability in Broadcom Fabric Operating System, published on 9 Jun 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Brocade Fabric OS prior to v9.0.1a and 8.2.3a and after v9.0.0 and 8.2.2d may observe high CPU load during security scanning, which could lead to a slower response to CLI commands and other operations.

## Which versions are affected by CVE-2020-15386?

It affects 1 product.


Products: Broadcom Fabric Operating System.

## How do I fix CVE-2020-15386?

No fix has been published for CVE-2020-15386 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-15386 being exploited?

There is no known exploitation of CVE-2020-15386 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-2020-15386 and fix it if it is affected.

What it is: CVE-2020-15386 is a medium-severity denial of service vulnerability in Broadcom Fabric Operating System, published on 9 Jun 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-15386 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-2020-15386/ (Markdown: https://insights.sbomify.com/CVE-2020-15386/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-15386
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-15386
- OSV: https://osv.dev/vulnerability/CVE-2020-15386

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-15386/
Summaries are generated and may contain mistakes; the official description above is the record.