NBMonitor 1.6.8 - Denial of Service (PoC) | Advisories

Advisories

NBMonitor 1.6.8 - Denial of Service (PoC)

severity: medium
date: January 15, 2026
Affecting: NBMonitor 1.6.8
CVE: CVE-2021-47814
CWE: CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CVSS: 6.7
CVSS V4 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
References: ExploitDB-49964
Vendor Homepage
Credit: Erick Galindo
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.