CVE-2021-47814

MEDIUM EPSS 34.4%
Published Jan 16, 20265mo ago · Modified Jun 17, 20262w ago
6.7 CVSS 4.0
Medium
Find Similar
Published Jan 16, 2026 5mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
6.7
Exploitability
—
Impact
—
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction A
Scope X

Threat Intelligence

EPSS Exploit Probability
34.4% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 1

CWE-120

Affected Products 1

VendorProductVersionRange
nsasoftnbmonitor1.6.8any

References 3

  • nsauditor.com http://www.nsauditor.com
    Product
  • exploit-db.com https://www.exploit-db.com/exploits/49964
    ExploitThird Party Advisory
  • vulncheck.com https://www.vulncheck.com/advisories/nbmonitor-denial-of-service-poc
    Third Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.