NoMachine Uncontrolled Search Path Element Local Privilege Escalation Vulnerability

August 13th, 2025
ZDI-25-835 ZDI-CAN-26766

CVE ID

CVE-2025-8614

CVSS Score

7.8 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Vendors

NoMachine

Affected Products

NoMachine

Vulnerability Details

This vulnerability allows local attackers to escalate privileges on affected installations of NoMachine. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

The specific flaw exists within the configuration of OpenSSL. The product loads an OpenSSL configuration file from an unsecured location. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the service account.

Additional Details

NoMachine has issued an update to correct this vulnerability. More details can be found at:
https://kb.nomachine.com/TR04W11314

Disclosure Timeline

  • 2025-04-25 - Vulnerability reported to vendor
  • 2025-08-13 - Coordinated public release of advisory
  • 2025-09-02 - Advisory Updated

Credit

Xavier DANEST

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