CVE-2026-27476

RustFly 2.0.0 Command Injection via UDP Remote Control

CVSS 9.3 CRITICALEPSS 2.6%CWE-78

Vexday Risk Score

48Attention

SSVC decision (CISA)

Attend

PoC available → attend closely

CVSS 9.3EPSS 2.6%KEV nãoPoC públicaNuclei —Metasploit —Patch —

Lifecycle

19 Feb 2026Published on NVD

Recommendation: Plan a near-term fix — a public PoC already exists.

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Affected products

Bixat · RustFly

public PoCs found — 1

cve_referencepacketstorm.news/files/id/215819/unverified

⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

References

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