CVE-2019-25334 Product Key Explorer 4.2.0.0 - 'Name' Denial of Service

Medium 6.7 Published Updated

Local attackers can crash Product Key Explorer by triggering a buffer overflow in the registration name field via crafted input.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2019-25334?

CVE-2019-25334 is a medium-severity memory corruption vulnerability in Nsasoft Nsauditor Product Key Explorer, published on 12 Feb 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official 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.

Weakness: CWE-121

Which versions are affected by CVE-2019-25334?

It affects 1 product.

Products include Nsasoft Product Key Explorer.

How do I fix CVE-2019-25334?

No fix has been published for CVE-2019-25334 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2019-25334 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-25334 exists.

Sources

Also known as GHSA-9vhj-ww26-xqw7.

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