---
id: CVE-2020-37200
title: >-
  NetShareWatcher 1.5.8.0 contains a buffer overflow vulnerability in the
  registration key input that allows attackers to crash the application by
  supplying oversized input
summary: >-
  NetShareWatcher 1.5.8.0 contains a buffer overflow vulnerability in the
  registration key input that allows attackers to crash the application by
  supplying oversized input. Attackers can generate a 1000-character payload and
  paste it into…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-121
vendor: nsasoft
product: netsharewatcher
affected:
  - netsharewatcher = 1.5.8.0
published: '2026-02-11'
updated: '2026-06-29'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2020-37200'
references:
  - url: 'http://www.nsauditor.com/'
    label: disclosure@vulncheck.com
  - url: 'https://www.exploit-db.com/exploits/47860'
    label: disclosure@vulncheck.com
  - url: 'https://www.vulncheck.com/advisories/netsharewatcher-key-denial-of-service'
    label: disclosure@vulncheck.com
tags:
  - nvd
epss: 0.00358
epssPercentile: 0.29643
ingestedAt: '2026-06-29T21:48:47.409Z'
---

## Overview

NetShareWatcher 1.5.8.0 contains a buffer overflow vulnerability in the registration key input that allows attackers to crash the application by supplying oversized input. Attackers can generate a 1000-character payload and paste it into the registration key field to trigger an application crash.

## Affected

- `netsharewatcher = 1.5.8.0`

## Remediation

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