# CVE-2007-0726: Denial of service in n/a

> Remote attackers can cause denial of service and break trust relationships by connecting to the SSH server before key generation completes.

- **Severity:** Medium 5.0 (`AV:N/AC:L/Au:N/C:N/I:N/A:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 13 Mar 2007
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-jmfq-982w-g5c5

## What is CVE-2007-0726?

CVE-2007-0726 is a medium-severity denial of service vulnerability in Apple Mac Os X, published on 13 Mar 2007. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The SSH key generation process in OpenSSH in Apple Mac OS X 10.3.9 and 10.4 through 10.4.8 allows remote attackers to cause a denial of service by connecting to the server before SSH has finished creating keys, which causes the keys to be regenerated and can break trust relationships that were based on the original keys.

## Which versions are affected by CVE-2007-0726?

It affects 2 products.


Products: Apple Mac Os X, Apple Mac Os X Server.

## How do I fix CVE-2007-0726?

No fix has been published for CVE-2007-0726 yet. Limit exposure of the affected software until one is available.

## Is CVE-2007-0726 being exploited?

There is no known exploitation of CVE-2007-0726 in the wild and no public exploit code.

## Other vulnerabilities in Apple Mac Os X

- [CVE-2014-7169](https://insights.sbomify.com/CVE-2014-7169/): GNU Bourne-Again Shell (Bash) Arbitrary Code Execution (critical 9.8, exploited in the wild)
- [CVE-2014-6271](https://insights.sbomify.com/CVE-2014-6271/): GNU Bourne-Again Shell (Bash) Arbitrary Code Execution (critical 9.8, exploited in the wild)
- [CVE-2012-1823](https://insights.sbomify.com/CVE-2012-1823/): PHP-CGI Query String Parameter (critical 9.8, exploited in the wild)
- [CVE-2021-30713](https://insights.sbomify.com/CVE-2021-30713/): Apple macOS Unspecified (high 7.8, exploited in the wild)
- [CVE-2019-8526](https://insights.sbomify.com/CVE-2019-8526/): Apple macOS Use-After-Free (high 7.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2007-0726 and fix it if it is affected.

What it is: CVE-2007-0726 is a medium-severity denial of service vulnerability in Apple Mac Os X, published on 13 Mar 2007. 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-2007-0726 in the wild and no public exploit code.

Affected product: Apple Mac Os X. 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-2007-0726/ (Markdown: https://insights.sbomify.com/CVE-2007-0726/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2007-0726
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2007-0726
- OSV: https://osv.dev/vulnerability/CVE-2007-0726

---
From sbomify Insights: https://insights.sbomify.com/CVE-2007-0726/
Summaries are generated and may contain mistakes; the official description above is the record.