CVE-2021-47814

MEDIUM 5.5CVE-2021-47814 · Published 16/01/2026 · updated 29/06/2026

In short

CVE-2021-47814 is a MEDIUM (CVSS 5.5) vulnerability affecting nbmonitor (nsasoft).
Chance of exploitation in the next 30 days (EPSS): 0.42%, higher than 35.9% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
nbmonitor nsasoft	`= 1.6.8`	No fix yet

Description

NBMonitor 1.6.8 contains a denial of service vulnerability that allows attackers to crash the application by overflowing the registration code input field. Attackers can paste a 256-character buffer into the registration key field to trigger an application crash and potential system instability.

References

nsauditor.com · Product
exploit-db.com/exploits/49964 · Exploit
vulncheck.com/advisories/nbmonitor-denial-of-service-poc · Third Party Advisory

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