CVE-2020-37131

MEDIUM

Nsauditor Product Key Explorer <4.2.2.0 - DoS

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2020-37131. PoCs published by 0xMoHassan.

AI-analyzed exploit summary This PoC demonstrates a Denial of Service (DoS) vulnerability in Product Key Explorer 4.2.2.0 by overwriting a buffer with a large number of 'A' characters (0x41). The exploit generates a malicious input file that crashes the application when pasted into the 'Key' field during registration.

Description

Nsauditor Product Key Explorer 4.2.2.0 contains a denial of service vulnerability that allows local attackers to crash the application by inputting a specially crafted registration key. Attackers can generate a payload of 1000 bytes of repeated characters and paste it into the 'Key' input field to trigger the application crash.

Exploits (1)

exploitdb WORKING POC
by 0xMoHassan · pythondoswindows
https://www.exploit-db.com/exploits/48284

This PoC demonstrates a Denial of Service (DoS) vulnerability in Product Key Explorer 4.2.2.0 by overwriting a buffer with a large number of 'A' characters (0x41). The exploit generates a malicious input file that crashes the application when pasted into the 'Key' field during registration.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Product Key Explorer 4.2.2.0
No auth needed
Prerequisites: Local access to the target system · Product Key Explorer 4.2.2.0 installed
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (3)

Core 3
Core References
Exploit, Third Party Advisory exploit
https://www.exploit-db.com/exploits/48284
Various Sources product
http://www.nsauditor.com

Scores

CVSS v3 6.2
EPSS 0.0021
EPSS Percentile 11.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-120
Status published
Products (2)
nsasoft/product_key_explorer 4.2.2.0
Nsauditor/Product Key Explorer 4.2.2.0
Published Feb 05, 2026
Tracked Since Feb 18, 2026