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.
AI Analysis
Technical Summary
CVE-2026-18264 is a remote code execution vulnerability in NoMachine's web service component, specifically in the 'getstat' command functionality. The vulnerability arises from insufficient validation of user input before it is passed to a system call, enabling authenticated remote attackers to execute arbitrary code with the service account's privileges. The web service listens on TCP port 4000 by default. NoMachine has issued a patch to remediate this vulnerability following coordinated disclosure on July 29, 2026.
Potential Impact
Successful exploitation allows remote attackers with valid authentication to execute arbitrary code on affected NoMachine installations. This can lead to full compromise of the service context, potentially impacting confidentiality, integrity, and availability of the affected system.
Mitigation Recommendations
NoMachine has released an official update that fixes this vulnerability. Users should apply the vendor-provided patch immediately to remediate the issue. Since authentication is required for exploitation, ensuring strong authentication controls is also recommended.
ZDI-26-483: NoMachine getstat Command Injection Remote Code Execution Vulnerability
Description
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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-18264 is a remote code execution vulnerability in NoMachine's web service component, specifically in the 'getstat' command functionality. The vulnerability arises from insufficient validation of user input before it is passed to a system call, enabling authenticated remote attackers to execute arbitrary code with the service account's privileges. The web service listens on TCP port 4000 by default. NoMachine has issued a patch to remediate this vulnerability following coordinated disclosure on July 29, 2026.
Potential Impact
Successful exploitation allows remote attackers with valid authentication to execute arbitrary code on affected NoMachine installations. This can lead to full compromise of the service context, potentially impacting confidentiality, integrity, and availability of the affected system.
Mitigation Recommendations
NoMachine has released an official update that fixes this vulnerability. Users should apply the vendor-provided patch immediately to remediate the issue. Since authentication is required for exploitation, ensuring strong authentication controls is also recommended.
Technical Details
- Article Source
- {"url":"http://www.zerodayinitiative.com/advisories/ZDI-26-483/","fetched":true,"fetchedAt":"2026-07-30T15:56:00.212Z","wordCount":194}
Threat ID: 6a6b74c49c2644c7f84cc1ec
Added to database: 07/30/2026, 15:59:00 UTC
Last enriched: 07/30/2026, 16:04:44 UTC
Last updated: 07/31/2026, 10:20:23 UTC
Views: 10
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.