# CVE-2018-0088: Memory corruption in Cisco IOS

> Authenticated local attackers with high privileges can exploit a diagnostic CLI command to overwrite system memory, causing arbitrary code execution or denial of service.

- **Severity:** Medium 6.7 (`CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 18 Jan 2018
- **Updated:** 2 Dec 2024
- **Also known as:** GHSA-3mrm-rr7c-34fm

## What is CVE-2018-0088?

CVE-2018-0088 is a medium-severity memory corruption vulnerability in Cisco IOS, published on 18 Jan 2018. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A vulnerability in one of the diagnostic test CLI commands on Cisco Industrial Ethernet 4010 Series Switches running Cisco IOS Software could allow an authenticated, local attacker to impact the stability of the device. This could result in arbitrary code execution or a denial of service (DoS) condition. The attacker has to have valid user credentials at privilege level 15. The vulnerability is due to a diagnostic test CLI command that allows the attacker to write to the device memory. An attacker could exploit this vulnerability by authenticating to the targeted device and issuing a specific diagnostic test command at the CLI. An exploit could allow the attacker to overwrite system memory locations, which could have a negative impact on the stability of the device. Cisco Bug IDs: CSCvf71150.

Weakness: CWE-732 (Incorrect Permission Assignment for Critical Resource), CWE-399

## Which versions are affected by CVE-2018-0088?

It affects 1 product.


Products: Cisco Industrial Ethernet 4010 Series Firmware.

## How do I fix CVE-2018-0088?

No fix has been published for CVE-2018-0088 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-0088 being exploited?

There is no known exploitation of CVE-2018-0088 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-0088 and fix it if it is affected.

What it is: CVE-2018-0088 is a medium-severity memory corruption vulnerability in Cisco IOS, published on 18 Jan 2018. 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-2018-0088 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-2018-0088/ (Markdown: https://insights.sbomify.com/CVE-2018-0088/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-0088
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-0088
- OSV: https://osv.dev/vulnerability/CVE-2018-0088

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From sbomify Insights: https://insights.sbomify.com/CVE-2018-0088/
Summaries are generated and may contain mistakes; the official description above is the record.