External risk intelligence

Kiloview E3 Command Injection Vulnerability

CVE advisorySeverity: CRITICAL (CVSS 9.4)

CVE-2026-110243

The vulnerability exists in the network management service of a video encoder. While the device is intended for network-based media delivery, the vulnerable configuration endpoint requires authenticated access, and such devices are typically deployed within internal or managed network environments rather than being directly exposed to the public internet.

OS Command Injection

Halo Surface Signal: 3 out of 5 — possibly public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

This advisory highlights a critical vulnerability in Kiloview E3 NDI encoder firmware. The issue resides within the network management service, where an authenticated user with network configuration privileges could potentially execute unauthorized commands on the device at the root level. The main concern is confirming relevance and exposure of these devices within the organization.

Unauthorized commands can run on encoders.
Confirms critical system relevance and exposure.
Ensure network devices are only managed by authorized personnel.

Attack Path

How an attacker could exploit the issue

An attacker with authenticated access to the web interface can manipulate the network interface name setting. By providing a specially crafted network interface name, the attacker can trick the device into executing arbitrary operating system commands with root privileges, potentially allowing them to take full control of the affected device.

Authenticated web user required.
Malformed network interface name input.
Full system control risk.

Live Threat

Current exploitation, exposure, and threat context

This vulnerability could allow an authenticated user with network configuration permissions to execute arbitrary commands on the affected device as the root user. This could impact the device's ability to perform its intended function of encoding and transmitting video streams.

System commands on the device.
Authenticated user could exploit endpoint.
Arbitrary command execution as root.

Operational Fix

Recommended remediation, mitigation, and detection steps

The Kiloview E3 NDI encoder's network management service is vulnerable to command injection, allowing authenticated users to execute arbitrary code as root. Given the device's function and typical deployment within managed networks, the platform or infrastructure team responsible for managing network devices is likely accountable. The first practical step is to identify all deployed Kiloview E3 units, determine their network reachability and business criticality, and then coordinate with the platform or infrastructure team to plan remediation during a scheduled maintenance window.

Platform or infrastructure teams own remediation.
Verify device network exposure and criticality.
Plan maintenance for firmware updates.

Supplementary metadata

CVSS vector

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Frequently asked questions

What is the Kiloview E3 NDI encoder?

The Kiloview E3 is a hardware device used for encoding and decoding video signals into the NDI (Network Device Interface) format. It enables professional-grade media delivery over standard IP networks, frequently used in live production, broadcasting, and streaming workflows to bridge physical video inputs with networked video infrastructure.

What is the command injection flaw in CVE-2026-110243?

This is a CWE-78 vulnerability, known as OS Command Injection. It occurs when a program takes user-supplied input and incorporates it into a system command without proper cleansing. In this specific case, the device fails to validate the network interface name, allowing an attacker to append their own malicious commands which the system then executes with root-level privileges.

How does an attacker trigger this vulnerability?

An attacker must first have valid credentials to access the device's web management interface. Once logged in with the necessary permissions to adjust network settings, they can supply a specially crafted string into the interface name field. Simply viewing the page or sending generic traffic does not trigger the bug; it requires an active, authenticated attempt to modify the device's configuration.

Is my device at risk if it is not on the public internet?

While Halo Surface Signal classifies the CVE-2026-110243 vector as external, these encoders are often deployed in internal, managed network segments. Even if the device is not directly reachable from the public internet, it remains vulnerable to anyone who has gained access to your internal network or possesses valid administrative credentials for the encoder's management interface.

What should I do to secure my Kiloview E3 units?

Begin by auditing your environment to locate all deployed E3 encoders. Prioritize those with high network connectivity or business criticality. Work with your infrastructure team to review access logs for suspicious activity and coordinate a maintenance window to apply the necessary firmware updates provided by the vendor.

References

Written by Nicholas Merritt

Nicholas Merritt is VP of Security Solutions at Halo Security. With more than 25 years across application security, vulnerability prioritization, and offensive security, he helps teams translate threat data into practical exposure validation and remediation focus. He authors Halo Threat Intelligence CVE advisories using Halo Surface Signal and H/A/L/O context to prioritize internet-facing risk.