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

Quick assessment

Affected
Nsauditor NBMonitor
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Nsasoft NBMonitor是美国Nsasoft公司的一款系统性能监控工具。 Nsasoft NBMonitor 1.6.8版本存在安全漏洞，该漏洞源于注册代码输入字段存在溢出，可能导致拒绝服务攻击。

CVSS 7.5 · High EPSS 0.42% · P35
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I. Basic Information for CVE-2021-47814

Vulnerability Information
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Vulnerability Title
NBMonitor 1.6.8 - Denial of Service (PoC)
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: CVE Program / CVE List V5
Vulnerability Title
Nsasoft NBMonitor 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Nsasoft NBMonitor是美国Nsasoft公司的一款系统性能监控工具。 Nsasoft NBMonitor 1.6.8版本存在安全漏洞，该漏洞源于注册代码输入字段存在溢出，可能导致拒绝服务攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Nsauditor NBMonitor 1.6.8 -

II. Public POCs for CVE-2021-47814

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III. Intelligence Information for CVE-2021-47814

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Exploits & Public PoCs for CVE-2021-47814 (1)

Same Patch Batch · Nsauditor · 2026-01-15 · 3 CVEs total

CVE-2021-47815 7.5 HIGH Nsauditor 3.2.3 - Denial of Service (PoC)
CVE-2021-47813 7.5 HIGH Backup Key Recovery 2.2.7 - Denial of Service (PoC)

IV. Related Vulnerabilities

Same vendor: Nsauditor
Same weakness: CWE-120

V. Comments for CVE-2021-47814

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