CVE-2026-27476

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 v4.0

9.3 CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1

9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

2.63% chance of exploitation in the next 30 days, 84th percentile

Published

2026-02-19

Updated

2026-02-20

Proof-of-concept exploits (1)

• https://packetstorm.news/files/id/215819/

References

• CVE Record
• NVD entry

Related

• CVE-2026-27475
• CVE-2026-2748
• CVE-2026-27474
• CVE-2026-27482
• CVE-2026-27472
• CVE-2026-27483