# CVE-2012-5106: Memory corruption in n/a

> Remote authenticated users can execute arbitrary code via a stack-based buffer overflow in the PUT command of FreeFloat FTP Server.

- **Severity:** Critical 10.0 (`AV:N/AC:L/Au:N/C:C/I:C/A:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 20 Jun 2014
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-266g-57p5-2hr4

## What is CVE-2012-5106?

CVE-2012-5106 is a critical memory corruption vulnerability in n/a, published on 20 Jun 2014. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Stack-based buffer overflow in FreeFloat FTP Server 1.0 allows remote authenticated users to execute arbitrary code via a long string in a PUT command.

Weakness: CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2012-5106?

It affects 1 product.


Products: Freefloat Freefloat Ftp Server.

## How do I fix CVE-2012-5106?

No fix has been published for CVE-2012-5106 yet. Limit exposure of the affected software until one is available.

## Is CVE-2012-5106 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2012-5106 exists.

Public exploit code:

- Freefloat FTP Server - 'PUT' Remote Buffer Overflow (exploitdb)
- CVE-2012-5106 - Freefloat FTP Server Buffer Overflow Vulnerability. Tested on Windows XP Professional SP3. (github_poc): https://github.com/war4uthor/CVE-2012-5106

## Other vulnerabilities in n/a

- [CVE-2019-25614](https://insights.sbomify.com/CVE-2019-25614/): Free Float FTP 1.0 STOR Command Remote Buffer Overflow (critical 9.3)
- [CVE-2012-10030](https://insights.sbomify.com/CVE-2012-10030/): FreeFloat FTP Server Arbitrary File Upload (critical 9.3)
- [CVE-2012-10023](https://insights.sbomify.com/CVE-2012-10023/): FreeFloat FTP Server USER Command Buffer Overflow (medium 6.9)
- [CVE-2025-5664](https://insights.sbomify.com/CVE-2025-5664/): FreeFloat FTP Server RESTART Command buffer overflow (medium 6.9)
- [CVE-2025-5665](https://insights.sbomify.com/CVE-2025-5665/): FreeFloat FTP Server XCWD Command buffer overflow (medium 6.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2012-5106 and fix it if it is affected.

What it is: CVE-2012-5106 is a critical memory corruption vulnerability in n/a, published on 20 Jun 2014. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2012-5106 exists.

Affected product: n/a. 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-2012-5106/ (Markdown: https://insights.sbomify.com/CVE-2012-5106/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2012-5106
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2012-5106
- OSV: https://osv.dev/vulnerability/CVE-2012-5106

---
From sbomify Insights: https://insights.sbomify.com/CVE-2012-5106/
Summaries are generated and may contain mistakes; the official description above is the record.