External risk intelligence

Dell Wyse Management Suite Unrestricted File Upload Vulnerability

CVE advisorySeverity: CRITICAL (CVSS 9.8)

CVE-2026-81240

Dell Wyse Management Suite is a centralized administrative platform often deployed to manage endpoints across an organization. These management consoles are frequently exposed to the network to facilitate remote device administration and monitoring, making them a common target for external network access.

Unrestricted File Upload

Dell Wyse Management Suite

before 2605.0.3.683

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 vulnerability in Dell Wyse Management Suite could allow an unauthenticated attacker to execute code remotely. This technology is used for managing Dell endpoints, and a successful exploit could potentially lead to system compromise. The primary concern is to confirm if this specific technology is in use within our environment.

  • Unrestricted file uploads enable remote code execution.
  • Critical software for managing devices presents a significant risk.
  • Assess if Dell Wyse Management Suite is deployed.

Attack Path

How an attacker could exploit the issue

An attacker without authentication could exploit this vulnerability by leveraging remote access to Dell Wyse Management Suite. This could allow them to upload a malicious file of a dangerous type to the system, potentially leading to the execution of arbitrary code on the server.

  • Unauthenticated remote access required.
  • Vulnerable file upload feature.
  • Risk of remote code execution.

Live Threat

Current exploitation, exposure, and threat context

This vulnerability could allow an unauthenticated remote attacker to execute code, potentially impacting the integrity and availability of the Dell Wyse Management Suite.

  • System code and configuration at risk.
  • Remote code execution via file upload.
  • Compromised management capabilities.

Operational Fix

Recommended remediation, mitigation, and detection steps

The Dell Wyse Management Suite's critical Unrestricted Upload vulnerability requires immediate attention from teams managing Dell endpoint infrastructure. The first practical step is to identify all instances of the affected software, assess their network exposure and business criticality, and then confirm the responsible ownership for remediation, followed by a risk-based plan.

  • Infrastructure and security teams own the issue.
  • Verify network exposure and business criticality.
  • Plan remediation based on identified risk.

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 Dell Wyse Management Suite?

It is a centralized administrative platform designed to manage and monitor Dell endpoints across an organization. Organizations use this suite to streamline device configurations, deploy software updates, and maintain security policies for large fleets of thin clients and other devices from a single console.

What does CWE-434 mean for CVE-2026-81240?

This identifier refers to an Unrestricted Upload of File with Dangerous Type. In this CVE, it means the software fails to properly validate or filter the files being uploaded. Because the application does not restrict file types, an attacker can upload a malicious script that the server then executes, resulting in unauthorized code execution.

How can an attacker trigger this vulnerability?

An unauthenticated remote attacker can exploit this by sending a malicious file directly to the vulnerable component of the management suite. Note that this requires network connectivity to the target; simply having the software installed on a local, isolated machine without network access does not provide the necessary path for an attacker to initiate the upload.

Is my instance of Dell Wyse Management Suite at risk?

According to Halo Surface Signal, this software is often deployed in ways that are accessible over the network to enable remote administration. If your instance is exposed to the internet or reachable across your corporate network, it is a likely target. You should check if your version is earlier than 2605.0.3.683 to determine if you are affected.

How do I respond to this vulnerability?

Start by identifying all instances of the suite running in your environment. Once identified, verify their network placement and determine who is responsible for managing these servers. Prioritize updating these systems to the patched version, 2605.0.3.683 or later, to remove the unrestricted file upload capability.

References