# CVE-2016-6414: Command injection in n/a

> Local attackers can execute arbitrary commands on the guest OS via crafted iox command-line options in Cisco IOS and IOS XE.

- **Severity:** High 7.8 (`CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 22 Sep 2016
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-j6mp-pxmq-5rv6

## What is CVE-2016-6414?

CVE-2016-6414 is a high-severity command injection vulnerability in Cisco Ios, published on 22 Sep 2016. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

iox in Cisco IOS, possibly 15.6 and earlier, and IOS XE, possibly 3.18 and earlier, allows local users to execute arbitrary IOx Linux commands on the guest OS via crafted iox command-line options, aka Bug ID CSCuz59223.

Weakness: CWE-78 (Improper Neutralization of Special Elements used in an OS Command)

## Which versions are affected by CVE-2016-6414?

It affects 1 product.


Products: Cisco Ios.

## How do I fix CVE-2016-6414?

No fix has been published for CVE-2016-6414 yet. Limit exposure of the affected software until one is available.

## Is CVE-2016-6414 being exploited?

There is no known exploitation of CVE-2016-6414 in the wild and no public exploit code.

## Other vulnerabilities in Cisco Ios

- [CVE-2017-12240](https://insights.sbomify.com/CVE-2017-12240/): Cisco IOS and IOS XE Software DHCP Remote Code Execution (critical 9.8, exploited in the wild)
- [CVE-2017-3881](https://insights.sbomify.com/CVE-2017-3881/): Cisco IOS and IOS XE Remote Code Execution (critical 9.8, exploited in the wild)
- [CVE-2018-0167](https://insights.sbomify.com/CVE-2018-0167/): Cisco IOS, XR, and XE Software Buffer Overflow (high 8.8, exploited in the wild)
- [CVE-2017-6736](https://insights.sbomify.com/CVE-2017-6736/): Cisco IOS and IOS XE Software SNMP Remote Code Execution (high 8.8, exploited in the wild)
- [CVE-2017-6737](https://insights.sbomify.com/CVE-2017-6737/): Cisco IOS and IOS XE Software SNMP Remote Code Execution (high 8.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2016-6414 and fix it if it is affected.

What it is: CVE-2016-6414 is a high-severity command injection vulnerability in Cisco Ios, published on 22 Sep 2016. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2016-6414 in the wild and no public exploit code.

Affected product: Cisco Ios. 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-2016-6414/ (Markdown: https://insights.sbomify.com/CVE-2016-6414/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2016-6414
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2016-6414
- OSV: https://osv.dev/vulnerability/CVE-2016-6414

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From sbomify Insights: https://insights.sbomify.com/CVE-2016-6414/
Summaries are generated and may contain mistakes; the official description above is the record.