CVE-2020-37203 Office Product Key Finder 1.5.4 - Denial of Service
Attackers can crash the Office Product Key Finder application by pasting a specially crafted text file into the registration field.
- 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-2020-37203?
CVE-2020-37203 is a medium-severity denial of service vulnerability in Nsasoft Nsauditor Office Product Key Finder, published on 11 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
Office Product Key Finder 1.5.4 contains a denial of service vulnerability that allows attackers to crash the application by manipulating the registration code input. Attackers can create a specially crafted text file and paste it into the 'Name and Key' field to trigger an application crash.
Weakness: CWE-120
Which versions are affected by CVE-2020-37203?
How do I fix CVE-2020-37203?
No fix has been published for CVE-2020-37203 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2020-37203 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-37203 exists.
Sources
Also known as GHSA-pmq3-mh37-3fc8.