CVE-2026-27476: Bixat Rustfly

Critical severity, CVSS 9.8. EPSS: 3% chance of exploitation in the next 30 days.

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.

Affected products

• Bixat Rustfly: version 2.0.0 only

Published 2026-02-19. Last modified 2026-06-17.