CVE-2021-47814

HIGH

Nsasoft Nbmonitor - Buffer Overflow

Title source: rule

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.

Exploits (1)

exploitdb WORKING POC

by Erick Galindo · pythondoswindows

https://www.exploit-db.com/exploits/49964

View Code ZIP pw:eip

References (3)

[Product] http://www.nsauditor.com

[Exploit, Third Party Advisory] https://www.exploit-db.com/exploits/49964

[Third Party Advisory] https://www.vulncheck.com/advisories/nbmonitor-denial-of-service-poc

Scores

CVSS v3 7.5

EPSS 0.0002

EPSS Percentile 4.3%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE

CWE-120

Status published

Products (1)

nsasoft/nbmonitor 1.6.8

Published Jan 16, 2026

Tracked Since Feb 18, 2026