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TI-2020-19266 Aliases CVE-2020-37131GHSA-c7w3-w5vf-px2h

Product Key Explorer 4.2.2.0 - 'Key' Denial of Service

Priority MEDIUM 63CWE-120Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Active
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00261 18th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
NsasoftProduct Key Explorer4.2.2.0—No fix listedCNA
  • Product Key Explorer VendorNsasoft Affected 4.2.2.0 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:nsasoft:product_key_explorer:4.2.2.0:*:*:*:*:*:*:*4.2.2.0VulnerableNsasoft
  • cpe:2.3:a:nsasoft:product_key_explorer:4.2.2.0:*:*:*:*:*:*:* Versions 4.2.2.0 Vulnerable ·Nsasoft

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-37131
  2. 2026-10-03 Alias added: GHSA-c7w3-w5vf-px2h

References

Exploit 1

Other 1

  • TI-2019-15388 Product Key Explorer 4.2.0.0 - 'Name' Denial of Service CVSS 4.0MEDIUM 6.7
  • TI-2024-00710 Nsasoft Product Key Explorer Registration memory corruption CVSS 3.1MEDIUM 5.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences