CVE-2021-47798 NoteBurner 2.35 - Denial Of Service (DoS) (PoC)
Attackers can crash the NoteBurner application by inputting a large buffer into license fields, causing a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-47798?
CVE-2021-47798 is a medium-severity memory corruption vulnerability in NoteBurner, published on 15 Jan 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
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.
Weakness: CWE-120
Which versions are affected by CVE-2021-47798?
How do I fix CVE-2021-47798?
No fix has been published for CVE-2021-47798 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2021-47798 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-47798 exists.
Sources
Also known as GHSA-489q-8735-fm7w.