Is CVE-2026-27476 actively exploited?

No active exploitation of CVE-2026-27476 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-27476 be exploited remotely?

Yes. CVE-2026-27476 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-27476?

CVE-2026-27476 has a CVSS score of 9.8 (CRITICAL) and an EPSS exploitation probability of 0.38%.

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CRITICAL

CVE-2026-27476

CWE-78Published: February 19, 2026· Updated: Feb 20, 2026

9.8

CVSS v3.1

EPSS:0.27%probability of exploitation in 30 daysPercentile:50.2th

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.

NVD Source

Technical Analysis

CVE-2026-27476 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.