---
id: CVE-2018-25368
title: >-
  Nord VPN 6.14.31 contains a denial of service vulnerability that allows
  unauthenticated attackers to crash the application by submitting an
  excessively long string in the password field
summary: >-
  Nord VPN 6.14.31 contains a denial of service vulnerability that allows
  unauthenticated attackers to crash the application by submitting an
  excessively long string in the password field. Attackers can paste a buffer of
  repeated character…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-789
published: '2026-05-25'
updated: '2026-10-06'
sourceUpdated: '2026-10-06T22:10:00.247'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2018-25368'
references:
  - url: 'https://nordvpn.com/download/'
    label: disclosure@vulncheck.com
  - url: 'https://www.exploit-db.com/exploits/45304'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/nord-vpn-denial-of-service-via-password-field
    label: disclosure@vulncheck.com
tags:
  - nvd
epss: 0.00386
epssPercentile: 0.30387
ingestedAt: '2026-10-06T22:23:15.925Z'
---

## Overview

Nord VPN 6.14.31 contains a denial of service vulnerability that allows unauthenticated attackers to crash the application by submitting an excessively long string in the password field. Attackers can paste a buffer of repeated characters into the password input field to trigger an application crash when attempting to authenticate.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.