Vulnerability · Published Aug 20, 2026 · Assigned by zdi

CVE-2026-18264NoMachine getstat Command Injection Remote Code Execution Vulnerability

High 8.8

In plain English

A high-severity OS command injection 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 2.3% (higher than 83% of all known vulnerabilities).

Severity (CVSS 3.0)8.8High

Exploit odds (30 days)2.3%top 16.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

NoMachine getstat Command Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of NoMachine. Authentication is required to exploit this vulnerability. The specific flaw exists within the web service, which listens on TCP port 4000 by default. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of the service account. . Was ZDI-CAN-30634.

Affected products (as reported)

Vendor	Product	Versions
NoMachine	NoMachine	9.7.3

Weakness: CWE-78 · Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

ZDI-26-483 x_research-advisory
vendor-provided URL vendor-advisory