CVE-2026-27476 RustFly 2.0.0 Command Injection via UDP Remote Control
Attackers can execute arbitrary system commands on RustFly devices by sending crafted UDP packets to the remote control interface.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-27476?
CVE-2026-27476 is a critical command injection vulnerability in Bixat RustFly, published on 19 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
RustFly 2.0.0 contains a command injection vulnerability in its remote UI control mechanism that accepts hex-encoded instructions over UDP port 5005 without proper sanitization. Attackers can send crafted hex-encoded payloads containing system commands to execute arbitrary operations on the target system, including reverse shell establishment and command execution.
Weakness: CWE-78
Which versions are affected by CVE-2026-27476?
How do I fix CVE-2026-27476?
No fix has been published for CVE-2026-27476 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-27476 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-27476 exists.
Sources
Also known as GHSA-2fw7-qxr6-mwq7.