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CVE-2026-81240 – Unauthenticated RCE via Arbitrary File Upload – Dell Wyse Management Suite before 2

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Summary

CVE-2026-81240 is an Unrestricted Upload of File with Dangerous Type vulnerability (CWE-434) affecting Dell Wyse Management Suite (WMS). An unauthenticated remote attacker can exploit the flaw to upload a dangerous file type to the application, resulting in remote code execution. The issue carries a High CVSS v3.1 base score of 8.6 and affects all WMS versions prior to 2605.0.3.683.

Technical details

  • Root cause: WMS fails to properly restrict the type of files that can be uploaded to the application, allowing a dangerous file (e.g., an executable or script) to be placed on the server.
  • Trigger conditions: No authentication or user interaction is required to reach the vulnerable upload functionality.
  • Attack vector: Network — the vulnerable component is reachable remotely over the network without prior access or credentials.
  • Impact: Successful exploitation can lead to remote code execution on the WMS server, with the CVSS vector indicating limited confidentiality impact, high integrity impact, and limited availability impact.

Affected software

  • Dell Wyse Management Suite (WMS): all versions prior to 2605.0.3.683

Severity

  • CVSS v3.1 Base Score: 8.6 (High)
  • Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L

Mitigation and recommended actions

  • Immediate: Upgrade Dell Wyse Management Suite to version 2605.0.3.683 or later, which remediates this vulnerability.
  • If no patch can be applied immediately: Restrict network access to the WMS management interface to trusted administrative networks only, and monitor for unexpected file uploads or unusual files appearing on the WMS server until the upgrade can be applied. Dell has not published an alternative workaround, so patching remains the primary remediation.

References

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