CVE-2021-47797 Leawo Prof. Media 11.0.0.1 - Denial of Service (DoS) (PoC)
Attackers can crash Leawo Prof. Media by pasting an oversized payload into the activation keycode field, 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-2021-47797?
CVE-2021-47797 is a medium-severity denial of service vulnerability in Leawo Prof. Media, 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
Leawo Prof. Media 11.0.0.1 contains a denial of service vulnerability that allows attackers to crash the application by supplying an oversized payload in the activation keycode field. Attackers can generate a 6000-byte buffer of repeated characters to trigger an application crash when pasted into the registration interface.
Weakness: CWE-120
Which versions are affected by CVE-2021-47797?
How do I fix CVE-2021-47797?
No fix has been published for CVE-2021-47797 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2021-47797 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-47797 exists.
Sources
Also known as GHSA-vfw6-v9vr-jfg2.