AUGUST 4, 2026
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Case File

CVE-2021-47798

CRITICAL · CVSS 9.8 EPSS 0.39% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2026-01-16 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. Public exploit code or proof-of-concept references have been detected in its references.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

External Security References
exploit-db.com ↗

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2021-47798
Severity
CRITICAL
CVSS
9.8
EPSS
0.39%

Original NVD Description

NoteBurner 2.35 contains a buffer overflow vulnerability in the license code input field that allows attackers to crash the application. Attackers can generate a 6000-byte payload and paste it into the 'Name' and 'Code' fields to trigger an application crash.