# CVE-2024-20336: Memory corruption in Cisco Business Wireless Access Point Software

> Authenticated attackers can execute arbitrary code as root via buffer overflow in the web interface of Cisco Small Business Wireless APs.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 6 Mar 2024
- **Updated:** 1 Aug 2024
- **Also known as:** GHSA-5v2f-93mx-7r24

## What is CVE-2024-20336?

CVE-2024-20336 is a medium-severity memory corruption vulnerability in Cisco Business Wireless Access Point Software, published on 6 Mar 2024. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

A vulnerability in the web-based user interface of Cisco Small Business 100, 300, and 500 Series Wireless APs could allow an authenticated, remote attacker to perform buffer overflow attacks against an affected device. In order to exploit this vulnerability, the attacker must have valid administrative credentials for the device. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted HTTP request to the web-based management interface of an affected device. A successful exploit could allow the attacker to execute arbitrary code as the root user on the underlying operating system.

Weakness: CWE-121 (Stack-based Buffer Overflow)

## Which versions are affected by CVE-2024-20336?

It affects 12 products.


Products: Cisco Wap121 Firmware, Cisco Wap125 Firmware, Cisco Wap131 Firmware, Cisco Wap150 Firmware, Cisco Wap320 Firmware, Cisco Wap321 Firmware, Cisco Wap351 Firmware, Cisco Wap361 Firmware, Cisco Wap371 Firmware, Cisco Wap571 Firmware, Cisco Wap571e Firmware, Cisco Wap581 Firmware.

## How do I fix CVE-2024-20336?

No fix has been published for CVE-2024-20336 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-20336 being exploited?

There is no known exploitation of CVE-2024-20336 in the wild and no public exploit code.

## Other vulnerabilities in Cisco Business Wireless Access Point Software

- [CVE-2018-0415](https://insights.sbomify.com/CVE-2018-0415/): Denial of service in Small Business 100 Series Wireless Access Points (medium 6.8)
- [CVE-2024-20335](https://insights.sbomify.com/CVE-2024-20335/): Command injection in Cisco Business Wireless Access Point Software (medium 6.5)
- [CVE-2018-0412](https://insights.sbomify.com/CVE-2018-0412/): Weak cryptography in Small Business 100 Series Wireless Access Points (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-20336 and fix it if it is affected.

What it is: CVE-2024-20336 is a medium-severity memory corruption vulnerability in Cisco Business Wireless Access Point Software, published on 6 Mar 2024. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2024-20336 in the wild and no public exploit code.

Affected product: Cisco Business Wireless Access Point Software. 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-2024-20336/ (Markdown: https://insights.sbomify.com/CVE-2024-20336/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-20336
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-20336
- OSV: https://osv.dev/vulnerability/CVE-2024-20336

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-20336/
Summaries are generated and may contain mistakes; the official description above is the record.