Medium severity · published Feb 12, 2026
CVE-2019-25334
Product Key Explorer 4.2.0.0 - 'Name' Denial of Service
5.5
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 13% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NP
Nsauditor Product Key Explorer · Nsasoft
4.2.0.0 · source: vendor
PK
Product Key Explorer · Nsasoft
4.2.0.0 · source: NVD