CVE-2020-37204

Analyzed Analyzed - Analysis Complete

Buffer Overflow in RemShutdown 2.9.0.0 Causes DoS Crash

Publication date: 2026-02-11

Last updated on: 2026-06-29

Assigner: VulnCheck

Description

RemShutdown 2.9.0.0 contains a denial of service vulnerability in its registration key input that allows attackers to crash the application. Attackers can generate a 1000-character buffer payload and paste it into the registration key field to trigger an application crash.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-02-11

Last Modified

2026-06-29

Generated

2026-07-06

AI Q&A

2026-02-11

EPSS Evaluated

2026-07-05

NVD

CVE-2020-37204

EUVD

EUVD-2020-31184

Affected Vendors & Products

Vendor	Product	Version / Range
nsasoft	remshutdown	2.9.0.0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-120	The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.

Attack-Flow Graph

Executive Summary

CVE-2020-37204 is a denial of service vulnerability in RemShutdown version 2.9.0.0 and earlier. It occurs because the application does not properly validate the size of input in the registration key field, leading to a buffer overflow.

An attacker can exploit this by generating a specially crafted payload of 1000 characters and pasting it into the registration key input, which causes the application to crash.

Impact Analysis

This vulnerability can cause the RemShutdown application to crash, resulting in a denial of service condition.

Since the attack requires local access and user interaction, an attacker with local access can disrupt the availability of the application by triggering this crash.

The impact is limited to availability, with no direct impact on confidentiality or integrity.

Compliance Impact

I don't know

Detection Guidance

[{'type': 'paragraph', 'content': 'This vulnerability can be detected by attempting to reproduce the crash condition on the RemShutdown application version 2.9.0.0. Specifically, you can generate a payload of 1000 characters and paste it into the registration key input field to see if the application crashes.'}, {'type': 'list_item', 'content': "Create a payload file with 1000 'A' characters using a Python script."}, {'type': 'list_item', 'content': 'Open RemShutdown 2.9.0.0 on a Windows system.'}, {'type': 'list_item', 'content': "Navigate to the registration dialog and paste the payload into the 'Key' field."}, {'type': 'list_item', 'content': "Click 'Ok' and observe if the application crashes, indicating the presence of the vulnerability."}] [2]

Mitigation Strategies

I don't know

Hi! I’m here to help you understand CVE-2020-37204. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70