Vulnerability · Published Jan 15, 2026 · Assigned by VulnCheck
CVE-2021-47798NoteBurner 2.35 - Denial Of Service (DoS) (PoC)
Critical 9.8
In plain English
A critical-severity buffer overflow in NoteBurner from Noteburner. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 37% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.4%top 63.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Noteburner | NoteBurner | 2.35 |
Weakness: CWE-120 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- ExploitDB-50154 exploit
- Official Product Homepage product
- VulnCheck Advisory: NoteBurner 2.35 - Denial Of Service (DoS) (PoC) third-party-advisory