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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.

PUBLISHED Reserved 2026-02-12 | Published 2026-02-12 | Updated 2026-02-13 | 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

Stack-based Buffer Overflow

Product status

4.2.0.0
affected

Credits

SajjadBnd finder

References

www.exploit-db.com/exploits/47766 (ExploitDB-47766) exploit

www.nsauditor.com (Vendor Homepage) product

www.vulncheck.com/...uct-key-explorer-name-denial-of-service (VulnCheck Advisory: Product Key Explorer 4.2.0.0 - 'Name' Denial of Service) third-party-advisory

cve.org (CVE-2019-25334)

nvd.nist.gov (CVE-2019-25334)

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