---
title: "CVE-2018-12120\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2018-12120?format=md
keywords: index, follow
---

# CVE-2018-12120

Publication date 28 November 2018

Last updated 25 August 2025

---

Ubuntu priority

**Medium**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

## Cvss 3 Severity Score

**8.1 · High**

[Score breakdown](https://ubuntu.com/security/CVE-2018-12120?format=md#impact-score)

Toggle side navigation

## Description

Node.js: All versions prior to Node.js 6.15.0: Debugger port 5858 listens
on any interface by default: When the debugger is enabled with `node
--debug` or `node debug`, it listens to port 5858 on all interfaces by
default. This may allow remote computers to attach to the debug port and
evaluate arbitrary JavaScript. The default interface is now localhost. It
has always been possible to start the debugger on a specific interface,
such as `node --debug=localhost`. The debugger was removed in Node.js 8 and
replaced with the inspector, so no versions from 8 and later are
vulnerable.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| nodejs | 18.10 cosmic | Not affected |
| 18.04 LTS bionic | Not affected |
| 16.04 LTS xenial | Not affected |
| 14.04 LTS trusty | Not affected |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

8.1 · High

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Network |
  | Attack complexity | High |
  | Privileges required | None |
  | User interaction | None |
  | Scope | Unchanged |
  | Confidentiality impact | High |
  | Integrity impact | High |
  | Availability impact | High |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 8.1 · High |
  | Exploitability score | - |
  | Impact score | - |

**Vector:** CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12120)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2018-12120)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2018-12120)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2018-12120)

### Other references

* <https://nodejs.org/en/blog/vulnerability/november-2018-security-releases/>
* <https://www.cve.org/CVERecord?id=CVE-2018-12120>