Vulnerability in Nomachine
CVE-2026-5055
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.002 (8.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 8th percentile — 8.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: -0.000
Affected products
- Nomachine — versions 9.2.18_1
Weakness classification (CWE)
References
- www.zerodayinitiative.com/advisories/ZDI-26-249/ (x_research-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2026-5055?
- CVE-2026-5055 is a high-severity vulnerability in Nomachine, classified under Uncontrolled Search Path Element. CVSS score: 7.8/10. Published 2026-04-11.
- How severe is CVE-2026-5055?
- High severity. CVSS v3 base score is 7.8 out of 10.