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7.8

NoMachine may let local users gain admin rights

CVE-2026-92209 · published 14 days ago
Summary

If someone can run a low‑privilege program on a machine with NoMachine installed, they could use a weakness in the program’s internal database login to raise their access level. This could let them run commands as the service account that runs NoMachine. Apply the latest NoMachine updates and restrict who can execute code on the system to mitigate the risk.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
nomachine nomachine 9.7.3
Original advisory text
NoMachine Redis Improper Authentication Local Privilege Escalation Vulnerability
NoMachine Redis Improper Authentication Local Privilege Escalation Vulnerability. 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 authentication mechanism controlling access to the Redis database. The issue results from using insufficient entropy in the generation of credentials. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the service account. Was ZDI-CAN-30984.
References
Fix within
Internet-facing 14 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker full control
Severity
7.8 High
Exploitation
<1% chance of attack within 30 days
Type
CWE-331Insufficient Entropy
Timeline
Published21 Oct 2026
Updated4 Nov 2026
First seen22 Oct 2026
Sources
CVE-2026-92209 · NVD
CVE-2026-92209 · MITRE
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