# CVE-2012-10060: Sysax Multi Server < 5.55 SSH Username Buffer Overflow

> Remote attackers can execute arbitrary code by sending an overly long username to the SSH service due to a stack-based buffer overflow.

- **Severity:** Critical 9.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 13 Aug 2025
- **Updated:** 26 May 2026
- **Also known as:** GHSA-74gq-wvgf-56v7

## What is CVE-2012-10060?

CVE-2012-10060 is a critical memory corruption vulnerability in Sysax Software Multi Server, published on 13 Aug 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Sysax Multi Server versions prior to 5.55 contain a stack-based buffer overflow in its SSH service. When a remote attacker supplies an overly long username during authentication, the server copies the input to a fixed-size stack buffer without proper bounds checking. This allows remote code execution under the context of the service.

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

## Which versions are affected by CVE-2012-10060?

It affects 1 product.


Products: Sysax Multi Server.

## How do I fix CVE-2012-10060?

No fix has been published for CVE-2012-10060 yet. Limit exposure of the affected software until one is available.

## Is CVE-2012-10060 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2012-10060 exists.

Public exploit code:

- Sysax 5.53 SSH Username Buffer Overflow (metasploit)

## Other vulnerabilities in Sysax Software Multi Server

- [CVE-2009-4790](https://insights.sbomify.com/CVE-2009-4790/): Path traversal in n/a (critical 9.0)
- [CVE-2020-13229](https://insights.sbomify.com/CVE-2020-13229/): Auth bypass in n/a (high 8.8)
- [CVE-2013-10065](https://insights.sbomify.com/CVE-2013-10065/): Sysax Multi-Server <= 6.10 SSHD Key Exchange DoS (high 8.7)
- [CVE-2024-53458](https://insights.sbomify.com/CVE-2024-53458/): Denial of service in n/a (high 7.5)
- [CVE-2012-6530](https://insights.sbomify.com/CVE-2012-6530/): Memory corruption in n/a (high 7.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2012-10060 and fix it if it is affected.

What it is: CVE-2012-10060 is a critical memory corruption vulnerability in Sysax Software Multi Server, published on 13 Aug 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2012-10060 exists.

Affected product: Sysax Software Multi Server. 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-2012-10060/ (Markdown: https://insights.sbomify.com/CVE-2012-10060/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2012-10060
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2012-10060
- OSV: https://osv.dev/vulnerability/CVE-2012-10060

---
From sbomify Insights: https://insights.sbomify.com/CVE-2012-10060/
Summaries are generated and may contain mistakes; the official description above is the record.