Vulnerability · Published Feb 5, 2026 · Assigned by VulnCheck
CVE-2020-37131Product Key Explorer 4.2.2.0 - 'Key' Denial of Service
Medium 6.2
In plain English
A medium-severity buffer overflow in Product Key Explorer from Nsauditor. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 18% of all known vulnerabilities).
Severity (CVSS 3.1)6.2Medium
Exploit odds (30 days)0.3%top 82.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Nsauditor | Product Key Explorer | 4.2.2.0 |
Weakness: CWE-120 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
- ExploitDB-48284 exploit
- Vendor Homepage product
- VulnCheck Advisory: Product Key Explorer 4.2.2.0 - 'Key' Denial of Service third-party-advisory