# CVE-2018-0462: Cisco Enterprise NFV Infrastructure Software Denial of Service Vulnerability

> An authenticated attacker can cause permanent system degradation by performing specific user management operations in Cisco NFVIS.

- **Severity:** Medium 4.9 (`CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 5 Oct 2018
- **Updated:** 26 Nov 2024
- **Also known as:** GHSA-6p7c-p2rc-54vq

## What is CVE-2018-0462?

CVE-2018-0462 is a medium-severity denial of service vulnerability in Cisco Enterprise NFV Infrastructure Software, published on 5 Oct 2018. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

A vulnerability in the user management functionality of Cisco Enterprise NFV Infrastructure Software (NFVIS) could allow an authenticated, remote attacker to perform a denial of service (DoS) attack against an affected system. The vulnerability is due to insufficient validation of user-provided input. An attacker could exploit this vulnerability by logging in with a highly privileged user account and performing a sequence of specific user management operations that interfere with the underlying operating system. A successful exploit could allow the attacker to permanently degrade the functionality of the affected system.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2018-0462?

It affects 1 product.


Products: Cisco Enterprise Network Virtualization Software.

## How do I fix CVE-2018-0462?

No fix has been published for CVE-2018-0462 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-0462 being exploited?

There is no known exploitation of CVE-2018-0462 in the wild and no public exploit code.

## Other vulnerabilities in Cisco Enterprise NFV Infrastructure Software

- [CVE-2018-15402](https://insights.sbomify.com/CVE-2018-15402/): Cisco Enterprise NFV Infrastructure Software Cross-Site Request Forgery Vulnerability (medium 5.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-0462 and fix it if it is affected.

What it is: CVE-2018-0462 is a medium-severity denial of service vulnerability in Cisco Enterprise NFV Infrastructure Software, published on 5 Oct 2018. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2018-0462 in the wild and no public exploit code.

Affected product: Cisco Enterprise NFV Infrastructure Software. 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-2018-0462/ (Markdown: https://insights.sbomify.com/CVE-2018-0462/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-0462
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-0462
- OSV: https://osv.dev/vulnerability/CVE-2018-0462

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-0462/
Summaries are generated and may contain mistakes; the official description above is the record.