CVE-2020-37131

Product Key Explorer 4.2.2.0 - 'Key' Denial of Service

CVSS 6.7 MEDIUMEPSS 0.2%CWE-120

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 6.7EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

05 Feb 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

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

Affected products

Nsauditor · Product Key Explorer

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References

https://www.exploit-db.com/exploits/48284 https://www.vulncheck.com/advisories/product-key-explorer-key-denial-of-service http://www.nsauditor.com