---
id: CVE-2026-92209
title: >-
  NoMachine Redis Improper Authentication Local Privilege Escalation
  Vulnerability
summary: >-
  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 execu…
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-331
vendor: NoMachine
product: NoMachine
affected:
  - NoMachine 9.7.3
exploitAvailable: true
published: '2026-10-21'
updated: '2026-10-21'
sourceUpdated: '2026-10-21T17:16:13.249Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-92209'
references:
  - url: 'https://www.zerodayinitiative.com/advisories/ZDI-26-711/'
    label: ZDI-26-711
tags:
  - cve.org
  - exploit-available
exploits:
  github: 1
  githubRepos:
    - 'https://github.com/do4choo/CVE-2026-92209_NoMachine_LPE'
  checkedAt: '2026-10-21T18:09:31.014Z'
zeroDay: true
ingestedAt: '2026-10-21T18:09:27.283Z'
---

## Overview

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.

## Affected

- `NoMachine 9.7.3`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.