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CVE-2020-37131

Product Key Explorer 4.2.2.0 - 'Key' Denial of Service

Published: Feb 5, 2026Updated: Feb 5, 2026 Sources: CVE List NVDCWE-120
NVD MITRE
6.2CVSSMEDIUM
EPSS Score
0.2%
Top 88.5%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
No Fix Available

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.

CVSS Vector Breakdown

AV:LAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-120

Affected Products

Product Key ExplorerNsauditor
On-prem
Security Products / pki-crypto
nsauditorcommercialSecurity Products

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

http://www.nsauditor.com
nsauditor.com
https://www.exploit-db.com/exploits/48284
exploit-db.com
https://www.vulncheck.com/advisories/product-key-explorer-key-denial-of-service
vulncheck.com

Timeline

Published
Feb 5, 2026
Last Updated
Feb 5, 2026

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