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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.

PUBLISHED Reserved 2026-02-03 | Published 2026-02-05 | Updated 2026-02-05 | Assigner VulnCheck




MEDIUM: 6.7CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
MEDIUM: 6.2CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Problem types

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Product status

4.2.2.0
affected

Credits

0xMoHassan finder

References

www.exploit-db.com/exploits/48284 (ExploitDB-48284) exploit

www.nsauditor.com (Vendor Homepage) product

www.vulncheck.com/...duct-key-explorer-key-denial-of-service (VulnCheck Advisory: Product Key Explorer 4.2.2.0 - 'Key' Denial of Service) third-party-advisory

cve.org (CVE-2020-37131)

nvd.nist.gov (CVE-2020-37131)

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