Advisory Details

August 13th, 2025

NoMachine Uncontrolled Search Path Element Local Privilege Escalation Vulnerability

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
  • 2025-08-13 - Advisory Updated
CREDIT Xavier DANEST
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