CVE-2021-47821 RarmaRadio 2.72.8 - Denial of Service
Attackers can crash RarmaRadio by pasting large character buffers into network configuration fields, causing application instability.
- 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-2021-47821?
CVE-2021-47821 is a medium-severity denial of service vulnerability in Raimersoft RarmaRadio, published on 16 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
RarmaRadio 2.72.8 contains a denial of service vulnerability that allows attackers to crash the application by overflowing network configuration fields with large character buffers. Attackers can generate a 100,000 character buffer and paste it into multiple network settings fields to trigger application instability and potential crash.
Weakness: CWE-1284
Which versions are affected by CVE-2021-47821?
How do I fix CVE-2021-47821?
No fix has been published for CVE-2021-47821 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-2021-47821 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-47821 exists.
Sources
Also known as GHSA-jf7q-q45c-4r4f.