---
id: CVE-2021-42923
title: ShowMyPC 3606 on Windows suffers from a DLL hijack vulnerability
summary: >-
  ShowMyPC 3606 on Windows suffers from a DLL hijack vulnerability. If an
  attacker overwrites the file %temp%\ShowMyPC\-ShowMyPC3606\wodVPN.dll, it will
  run any malicious code contained in that file. The code will run with normal
  user priv…
severity: high
cvss: 7.3
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H'
cwe:
  - CWE-427
vendor: showmypc
product: showmypc
affected:
  - showmypc = 3606
published: '2022-07-18'
updated: '2026-07-05'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2021-42923'
references:
  - url: 'https://f20.be/cves/showmypc-cve-2021-42923'
    label: cve@mitre.org
  - url: 'http://showmypc.com'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://f20.be/cves/showmypc-cve-2021-42923'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.00215
epssPercentile: 0.10555
ingestedAt: '2026-07-06T17:03:24.852Z'
---

## Overview

ShowMyPC 3606 on Windows suffers from a DLL hijack vulnerability. If an attacker overwrites the file %temp%\ShowMyPC\-ShowMyPC3606\wodVPN.dll, it will run any malicious code contained in that file. The code will run with normal user privileges unless the user specifically runs ShowMyPC as administrator.

## Affected

- `showmypc = 3606`

## Remediation

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