What is CVE-2026-5054?

CVE-2026-5054 is a high-severity vulnerability in Nomachine, classified under External Control of File Name or Path. CVSS score: 7.8/10. Published 2026-04-11.

How severe is CVE-2026-5054?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Nomachine

CVE-2026-5054

NoMachine External Control of File Path 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 handling of command line parameters. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of root. Was ZDI-CAN-28630.

EPSS: 0.002 (7.5th percentile) — read the EPSS interpretation.

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.

Affected products

Nomachine — versions 9.3.7

Weakness classification (CWE)

CWE-73 — External Control of File Name or Path

References

zdi-disclosures@trendmicro.com (x_research-advisory, Third Party Advisory)

Frequently asked questions

What is CVE-2026-5054?: CVE-2026-5054 is a high-severity vulnerability in Nomachine, classified under External Control of File Name or Path. CVSS score: 7.8/10. Published 2026-04-11.
How severe is CVE-2026-5054?: High severity. CVSS v3 base score is 7.8 out of 10.