CVE-2026-27476: RustFly 2.0.0 Command Injection via UDP Remote Control

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-02-19 · updated 2026-06-17
Weakness: CWE-78

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.

Affected products

Bixat RustFly: 2.0.0

References

https://packetstorm.news/files/id/215819/
https://www.vulncheck.com/advisories/rustfly-command-injection-via-udp-remote-control

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