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.

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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
.