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CVE-2020-37131 Nsauditor CVE debrief

CVE-2020-37131 is a denial of service vulnerability in Nsauditor Product Key Explorer 4.2.2.0. Local attackers can crash the application with a specially crafted registration key. The vulnerability is triggered by inputting a payload of 1000 bytes of repeated characters into the 'Key' input field. This issue has a CVSS score of 6.7 and a severity of MEDIUM. The CVE was published on 2026-02-05T17:16:08.207Z and modified on 2026-06-29T18:29:31.553Z.

Vendor
Nsauditor
Product
Product Key Explorer
CVSS
MEDIUM 6.7
CISA KEV
Not listed in stored evidence
Original CVE published
2026-02-05
Original CVE updated
2026-06-29
Advisory published
2026-02-05
Advisory updated
2026-06-29

Who should care

Security teams and administrators responsible for Nsauditor Product Key Explorer 4.2.2.0 should prioritize patching this vulnerability to prevent potential denial of service attacks. This vulnerability can be exploited by local attackers, making it a significant concern for organizations using this software. The CVSS score of 6.7 indicates a medium severity level.

Technical summary

The vulnerability in Nsauditor Product Key Explorer 4.2.2.0 allows local attackers to crash the application by inputting a specially crafted registration key. A payload of 1000 bytes of repeated characters can be used to trigger the application crash. The Common Vulnerability Scoring System (CVSS) score for this vulnerability is 6.7, indicating a medium severity level. The CVSS vector is CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X.

Defensive priority

Patching this vulnerability is a high priority for organizations using Nsauditor Product Key Explorer 4.2.2.0. Security teams should ensure that all instances of the software are updated to a patched version to prevent potential denial of service attacks.

Recommended defensive actions

  • Patch Nsauditor Product Key Explorer 4.2.2.0 to a version that addresses this vulnerability.
  • Implement input validation and sanitization for registration key input fields.
  • Monitor for suspicious activity and crashes of the Product Key Explorer application.
  • Consider compensating controls such as limiting access to the application and monitoring system logs.
  • Perform regular vulnerability assessments and penetration testing to identify potential vulnerabilities.

Evidence notes

The CVE-2020-37131 vulnerability was published on 2026-02-05T17:16:08.207Z and modified on 2026-06-29T18:29:31.553Z. The vulnerability has a CVSS score of 6.7 and a severity of MEDIUM. The Common Vulnerability and Exposure (CVE) program has assigned this vulnerability a unique identifier.

Official resources

This article is AI-assisted and based on the supplied source corpus.