Buffer Overflow Vulnerability in NoteBurner by NoteBurner Inc.
CVE-2021-47798

6.7MEDIUM

Key Information:

Vendor

Noteburner

Status
Noteburner
Vendor
CVE Published:
15 January 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2021-47798?

NoteBurner 2.35 has a vulnerability in its license code input field that allows for a buffer overflow. Malicious actors can exploit this flaw by entering a crafted payload of up to 6000 bytes into the 'Name' and 'Code' fields, leading to an unexpected application crash. This poses a risk of Denial of Service, interrupting users' ability to utilize the software effectively.

Affected Version(s)

NoteBurner 2.35

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2021-47798 - Proof of Concept

References

https://www.exploit-db.com/exploits/50154
exploit
https://www.noteburner.com/
product
https://www.vulncheck.com/advisories/noteburner-denial-of...
third-party-advisory

CVSS V4

Score:
6.7
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Achilles
JSON
.