---
id: CVE-2018-25239
title: >-
  Smart VPN 1.1.3.0 contains a denial of service vulnerability that allows local
  attackers to crash the application by submitting oversized input through the
  search interface
summary: >-
  Smart VPN 1.1.3.0 contains a denial of service vulnerability that allows local
  attackers to crash the application by submitting oversized input through the
  search interface. Attackers can paste a buffer of 2100 characters into the top
  ri…
severity: medium
cvss: 6.2
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-470
published: '2026-04-04'
updated: '2026-07-21'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2018-25239'
references:
  - url: 'https://www.exploit-db.com/exploits/46272'
    label: disclosure@vulncheck.com
  - url: 'https://www.microsoft.com/store/productId/9NH1G93D4HKR'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/smart-vpn-denial-of-service-via-search
    label: disclosure@vulncheck.com
tags:
  - nvd
epss: 0.00187
epssPercentile: 0.08519
ingestedAt: '2026-07-21T16:51:41.445Z'
---

## Overview

Smart VPN 1.1.3.0 contains a denial of service vulnerability that allows local attackers to crash the application by submitting oversized input through the search interface. Attackers can paste a buffer of 2100 characters into the top right search bar to trigger an unhandled exception that crashes the application.

## Remediation

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