CVE-2026-92208
HighCVSS 8.8Exploitation Probability (EPSS)
Low risk47th percentile - higher than 47% of all known CVEs
Summary
NoMachine mDNS Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NoMachine without authentication. The flaw exists in the parsing of mDNS resource records due to lack of proper validation of user-supplied data length before copying to a heap-based buffer.
Risk Assessment
A network-adjacent attacker can execute arbitrary code without authentication, potentially leading to system compromise. This poses a high risk to confidentiality, integrity, and availability.
Recommendation
Update NoMachine to the latest patched version. Restrict network access to mDNS services and monitor for suspicious traffic.
Other vulnerabilities in NoMachine
See all- CVE-2017-12763High
An unspecified server utility in NoMachine before version 5.3.10 on Mac OS X and Linux allows authenticated users to gain privileges by accessing local files.
- CVE-2026-92209High
The authentication mechanism controlling access to the Redis database in NoMachine uses insufficient entropy when generating credentials. A local attacker able to execute low-privileged code can exploit this to escalate privileges and execute arbitrary code in the context of the service account.
- CVE-2026-111184High
The vulnerability in NoMachine Device Service stems from incorrect permissions on a named pipe. A local attacker able to execute low-privileged code can exploit this flaw to escalate privileges and execute arbitrary code in the context of SYSTEM.
- CVE-2026-18264High
Vulnerability in NoMachine in the getstat service is due to lack of proper validation of a user-supplied string before using it to execute a system call. A remote authenticated attacker can exploit this flaw to execute arbitrary code in the context of the service account.
- CVE-2026-53694High
An Argument Injection vulnerability was found in NoMachine before versions 9.5.7 and 8.23.2. The flaw is due to improper neutralization of argument delimiters in a command, allowing an attacker to inject malicious arguments.
- CVE-2025-8614High
NoMachine Uncontrolled Search Path Element 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 flaw exists within the configuration of OpenSSL, which loads a configuration file from an unsecured location, allowing escalation to the service account.
Original NVD description (English source)
NoMachine mDNS Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NoMachine. Authentication is not required to exploit this vulnerability. The specific flaw exists within the parsing of mDNS resource records. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the service account. Was ZDI-CAN-30982.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

