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Description

NBMonitor 1.6.6.0 contains a denial of service vulnerability in its registration key input that allows attackers to crash the application. Attackers can generate a 1000-character buffer payload and paste it into the 'Key' field to trigger an application crash.

PUBLISHED Reserved 2026-02-10 | Published 2026-02-11 | Updated 2026-02-12 | Assigner VulnCheck




MEDIUM: 4.6CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
HIGH: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Problem types

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Product status

1.6.6.0
affected

Credits

Ismail Tasdelen finder

References

www.exploit-db.com/exploits/47866 (ExploitDB-47866) exploit

www.nsauditor.com/ (Vendor Homepage) product

www.vulncheck.com/advisories/nbmonitor-key-denial-of-service (VulnCheck Advisory: NBMonitor 1.6.6.0 - 'Key' Denial of Service) third-party-advisory

cve.org (CVE-2020-37199)

nvd.nist.gov (CVE-2020-37199)

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