External risk intelligence

Neye3C Firmware Update Hardcoded Key Vulnerability

CVE advisorySeverity: CRITICAL (CVSS 9.8)

CVE-2024-48539

The vulnerability exists in the firmware update mechanism of a product (Neye3C) typically used for network-connected cameras or DVR systems. Such devices are commonly deployed as internet-facing appliances or managed via remote network access, making the update mechanism and device surface frequently reachable from the public internet.

Halo Surface Signal: 4 out of 5 — likely to be public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

A critical vulnerability has been identified in the firmware update process of Neye3C devices, involving a hardcoded encryption key. This could allow unauthorized access and manipulation of device functions if exploited. The primary concern is to confirm if our deployed Neye3C systems are affected and to understand the potential exposure.

Firmware flaw allows unauthorized access to devices.
Hardcoded key can be exploited remotely.
Confirm exposure and assess relevance.

Attack Path

How an attacker could exploit the issue

An attacker could target the firmware update mechanism of Neye3C devices accessible over a network. By exploiting the presence of a hardcoded encryption key within this mechanism, an attacker could potentially decrypt sensitive information or even inject malicious code during the update process. This could lead to a complete compromise of the device.

Network access required to reach the device.
Firmware update mechanism is the trigger point.
Risk of unauthorized access and control.

Live Threat

Current exploitation, exposure, and threat context

A hardcoded encryption key in the Neye3C firmware update mechanism could allow an attacker to decrypt sensitive information when the update process is initiated. This could potentially expose data related to the device's operation or configuration.

Device configuration data.
Key exposed via firmware update mechanism.
Confidentiality of device information.

Operational Fix

Recommended remediation, mitigation, and detection steps

The discovery of a hardcoded encryption key in the Neye3C firmware update mechanism necessitates immediate action from teams responsible for managing and securing network-connected devices. Given the nature of the vulnerability, platform or infrastructure teams are likely responsible for identifying affected Neye3C devices across the environment. The critical first step is to locate all instances of Neye3C, assess their network reachability and business criticality, and then determine the accountable owner to plan a prioritized remediation strategy.

Platform or infrastructure teams own issue.
Verify device reachability and criticality first.
Plan remediation based on exposure and risk.

Supplementary metadata

CVSS vector

Validate whether this threat affects your internet-facing exposure.

Halo Threat Intelligence helps prioritize remediation with Halo Surface Signal and H/A/L/O context. Start exposure validation with a free external attack surface trial.

Free EASM Trial See How Signal Works

Frequently asked questions

What is Neye3C?

Neye3C is a software platform typically utilized for managing network-connected devices, such as digital video recorders (DVRs) or security cameras. These systems act as a central interface for monitoring, configuring, and maintaining surveillance hardware, often requiring remote network connectivity to function properly.

What does CWE-798 mean for CVE-2024-48539?

CWE-798 refers to the use of hardcoded credentials or encryption keys. In CVE-2024-48539, this means the software contains a fixed, secret key embedded directly within its code to secure firmware updates. Because this key is static and known, it fails to provide actual protection, potentially allowing unauthorized parties to bypass security controls meant to keep the firmware integrity intact.

How is the CVE-2024-48539 vulnerability triggered?

The vulnerability is triggered through the firmware update process. An attacker must interact with the update mechanism to leverage the hardcoded key. Simply using the device for standard video streaming or routine monitoring does not trigger this flaw; it specifically requires targeting the logic that handles firmware updates and device communication.

Is my Neye3C device at risk?

Risk depends on your deployment. Halo Surface Signal notes that Neye3C devices are frequently used for network-connected cameras or DVRs, which are often intentionally or inadvertently exposed to the public internet. If your device is accessible via a public network rather than isolated within a private, internal segment, it is significantly more likely that an attacker can reach the vulnerable update mechanism.

What should I do if I use Neye3C?

Begin by creating an inventory of all Neye3C installations in your environment. Prioritize identifying which units are reachable over the network and determine their business criticality. Once mapped, coordinate with your infrastructure team to evaluate the risk and establish a plan to restrict network access or await specific guidance from the device manufacturer regarding updates.

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.