# CVE-2013-10064: ActFax 5.01 RAW Server Buffer Overflow

> Remote attackers can execute arbitrary code on ActFax Server by sending crafted data to the RAW protocol interface without authentication.

- **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:** 5 Aug 2025
- **Updated:** 14 May 2026
- **Also known as:** GHSA-hh3x-6q43-46x2

## What is CVE-2013-10064?

CVE-2013-10064 is a critical memory corruption vulnerability in ActFax Server, published on 5 Aug 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A stack-based buffer overflow vulnerability exists in ActFax Server version 5.01. The server's RAW protocol interface fails to safely process user-supplied data in @F506 fax header fields due to insecure usage of strcpy. Remote attackers can exploit this vulnerability by sending specially crafted @F506 fields, potentially leading to arbitrary code execution. Successful exploitation requires network access to TCP port 4559 and does not require authentication.

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

## Which versions are affected by CVE-2013-10064?


## How do I fix CVE-2013-10064?

No fix has been published for CVE-2013-10064 yet. Limit exposure of the affected software until one is available.

## Is CVE-2013-10064 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2013-10064 exists.

Public exploit code:

- ActFax 5.01 RAW Server Buffer Overflow (metasploit)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2013-10064 and fix it if it is affected.

What it is: CVE-2013-10064 is a critical memory corruption vulnerability in ActFax Server, published on 5 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-2013-10064 exists.

Affected product: ActFax 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-2013-10064/ (Markdown: https://insights.sbomify.com/CVE-2013-10064/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2013-10064
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2013-10064
- OSV: https://osv.dev/vulnerability/CVE-2013-10064

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From sbomify Insights: https://insights.sbomify.com/CVE-2013-10064/
Summaries are generated and may contain mistakes; the official description above is the record.