CVE-2024-6199 Unauthenticated Remote Code Execution
An attacker can achieve remote code execution on ViaSat modems by exploiting a buffer overflow via manipulated Dynamic DNS traffic if DDNS is enabled.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-6199?
CVE-2024-6199 is a high-severity memory corruption vulnerability in ViaSat EG1000, published on 25 Apr 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An unauthenticated attacker on the WAN interface, with the ability to intercept Dynamic DNS (DDNS) traffic between DDNS services and the modem, could manipulate specific responses to include code that forces a buffer overflow on the modem.
Customers that have not enabled Dynamic DNS on their modem are not vulnerable.
Weakness: CWE-120
Which versions are affected by CVE-2024-6199?
How do I fix CVE-2024-6199?
No fix has been published for CVE-2024-6199 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-2024-6199 being exploited?
There is no known exploitation of CVE-2024-6199 in the wild and no public exploit code.
Sources
Also known as GHSA-854w-ph8g-6mrh.