Product Key Explorer 4.2.0.0 contains a denial of service vulnerability that allows local attackers to crash the application by overflowing the registration name input field. Attackers can create a specially crafted text file with repeated characters to trigger a buffer overflow when pasted into the registration name field, causing the application to crash.

Attack Vector Local

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Active

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00012.

Exploitation poc

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Nsasoft Nsauditor Product Key Explorer affected
Version Status Constraints
4.2.0.0 affected —

No data.

No data.

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Vendors Products
Nsauditor Subscribe
Product Key Explorer Subscribe

Project Subscriptions

Vendors Products
Nsauditor Subscribe
Product Key Explorer Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
http://www.nsauditor.com cve-icon cve-icon
https://www.exploit-db.com/exploits/47766 cve-icon cve-icon
https://www.vulncheck.com/advisories/product-key-explorer-name-denial-of-service cve-icon cve-icon
History

Fri, 13 Feb 2026 21:45:00 +0000

Type Values Removed Values Added
First Time appeared Nsauditor
Nsauditor product Key Explorer
Vendors & Products Nsauditor
Nsauditor product Key Explorer

Fri, 13 Feb 2026 18:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Thu, 12 Feb 2026 23:15:00 +0000

Type Values Removed Values Added
Description Product Key Explorer 4.2.0.0 contains a denial of service vulnerability that allows local attackers to crash the application by overflowing the registration name input field. Attackers can create a specially crafted text file with repeated characters to trigger a buffer overflow when pasted into the registration name field, causing the application to crash.
Title Product Key Explorer 4.2.0.0 - 'Name' Denial of Service
Weaknesses CWE-121
References
Metrics cvssV3_1

{'score': 6.2, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 6.7, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-02-13T17:18:37.029Z

Reserved: 2026-02-12T14:43:38.081Z

Link: CVE-2019-25334

cve-icon Vulnrichment

Updated: 2026-02-13T17:18:32.892Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-02-12T23:16:06.540

Modified: 2026-02-13T14:23:48.007

Link: CVE-2019-25334

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-02-13T21:29:03Z

Weaknesses