CVE-2021-47814 MEDIUM

CVE-2021-47814: NBMonitor 1.6.8 - Denial of Service (PoC)

Vendor Nsauditor
Product NBMonitor
Weakness CWE-120
Published January 15, 2026
Last update March 5, 2026
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CVSS base score

6.7/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction —
Confidentiality —
Integrity —

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

January 15, 2026 CVE published
March 5, 2026 Record updated