High severity · published Aug 20, 2026
CVE-2026-18264
NoMachine getstat Command Injection Remote Code Execution Vulnerability
8.8
CVSS
2.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.3% · higher than 83% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NO
NoMachine · NoMachine
9.7.3 · source: vendor
In the news
VulnerabilityHigh
ZDI-26-483: 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 ZDI has assigned a CVSS rating of 8.8. The following CVEs are assigned: CVE-2026-18264.
Jul 29, 2026·Zero Day Initiative
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-18264
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-18264
kb.nomachine.com
https://kb.nomachine.com/TR06X11869
www.zerodayinitiative.com
https://www.zerodayinitiative.com/advisories/ZDI-26-483/
More from NoMachine
9.8
CVE-2018-0664
A vulnerability in NoMachine App for Android 5.0.63 and earlier allows attackers to alter environment variables via unspecified vectors
9.1
CVE-2023-39107
An arbitrary file overwrite vulnerability in NoMachine Free Edition and Enterprise Client for macOS before v8.8.1 allows attackers to overwrite root-owned files by using hardlinks
8.8
CVE-2026-92208
NoMachine mDNS Heap-based Buffer Overflow Remote Code Execution Vulnerability
8.8
CVE-2017-12763
An unspecified server utility in NoMachine before 5.3.10 on Mac OS X and Linux allows authenticated users to gain privileges by gaining access to local files
7.8
CVE-2026-92209
NoMachine Redis Improper Authentication Local Privilege Escalation Vulnerability