External risk intelligence

iib0011 omni-tools Unsafe JSON Deserialization Leads to Remote Code Execution.

CVE advisorySeverity: CRITICAL (CVSS 9.8)

CVE-2025-50739

The vulnerability involves unsafe JSON deserialization in omni-tools v0.4.0. While network-based exploitation is possible, the product is a set of developer-oriented or general utility tools rather than a dedicated internet-facing edge service, gateway, or web application. As such, while it could be exposed in certain deployments, there is no evidence to suggest it is commonly deployed as a public-facing service.

Code 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 addresses a critical vulnerability in iib0011 omni-tools that could allow remote code execution through unsafe handling of data. While the potential for attack is high, its direct impact depends on how these tools are deployed within our environment, as they are not typically internet-facing services.

  • Allows unauthorized code execution remotely.
  • Critical flaw in developer tools requires attention.
  • Confirm relevance and assess exposure.

Attack Path

How an attacker could exploit the issue

An attacker could exploit this vulnerability by sending a specially crafted JSON payload over the network to a system running iib0011 omni-tools. This could allow the attacker to execute arbitrary code on the affected system.

  • Network access is required.
  • Unsafe JSON deserialization is triggered.
  • Remote code execution is the risk.

Live Threat

Current exploitation, exposure, and threat context

When supported by the advisory, this vulnerability could allow an attacker to execute arbitrary code remotely on a system running iib0011 omni-tools. This could occur if the tool processes untrusted JSON data, potentially impacting the integrity and availability of the affected system.

  • System code integrity and availability.
  • Unsafe JSON deserialization over the network.
  • Remote code execution on the host.

Operational Fix

Recommended remediation, mitigation, and detection steps

The critical remote code execution vulnerability in iib0011 omni-tools demands immediate attention, likely falling under the purview of platform or development toolchain teams responsible for managing these utilities. The first practical step is to confirm the presence and exposure of omni-tools within your environment, identify the accountable team, and then assess the business criticality before planning remediation.

  • Platform or development toolchain teams own this.
  • Verify omni-tools deployment and exposure.
  • Plan remediation based on risk assessment.

Supplementary metadata

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.

Frequently asked questions

What is iib0011 omni-tools?

iib0011 omni-tools is a collection of utility and developer-focused software. These tools are designed to assist with various technical tasks and data processing rather than serving as infrastructure components like web gateways or public-facing edge services.

What does unsafe JSON deserialization mean in CVE-2025-50739?

This vulnerability, classified as CWE-94, occurs when the software processes incoming JSON data without sufficient security checks. Because the tool trusts the structure of the data, an attacker can supply a specially crafted JSON object that tricks the application into executing unauthorized code on the underlying system.

How is this vulnerability triggered?

The flaw is triggered when the tool receives and processes untrusted JSON input over a network connection. Simply having the software installed does not trigger the bug; the system must be actively engaged in deserializing malicious JSON data for the vulnerability to manifest.

Is my system at risk according to Halo Surface Signal?

Halo Surface Signal notes that while network-based exploitation is possible, omni-tools is not typically deployed as an internet-facing service. The risk is higher if you have intentionally configured these utilities to be reachable from the public internet, rather than restricting them to internal developer environments.

What should I do if I use omni-tools?

Your first step is to locate where omni-tools v0.4.0 is deployed within your organization and identify which teams manage these utilities. Once you have identified these instances, assess whether the specific deployments are exposed to untrusted network traffic and prioritize them based on their connection to your internal network.

References