Vulnerability · Published Oct 21, 2026 · Assigned by zdi
CVE-2026-92209NoMachine Redis Improper Authentication Local Privilege Escalation Vulnerability
High 7.8
In plain English
A high-severity security flaw in NoMachine from NoMachine. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.
Official description
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 products (as reported)
Weakness: CWE-331 · Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
- ZDI-26-711 x_research-advisory