High severity · published Apr 11, 2026
CVE-2026-5055
NoMachine Uncontrolled Search Path Element Local Privilege Escalation Vulnerability
7.8
CVSS
0.2%
EPSS
No
On KEV
Description
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 specific flaw exists within the NoMachine Device Server. The product loads a library from an unsecured location. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-28494.
CVSS vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 12% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NO
NoMachine · NoMachine
9.2.18_1 · source: vendor, NVD
In the news
VulnerabilityHigh
ZDI-26-249: 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 ZDI has assigned a CVSS rating of 7.8. The following CVEs are assigned: CVE-2026-5055.
Mar 30, 2026·Zero Day Initiative
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-5055
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-5055
Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-26-249/
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