What’s Vulnerable › Vulnerabilities
CVE-2026-5053: NoMachine External Control of File Path Arbitrary File Deletion Vulnerability
- Severity: high (CVSS 7.1 v3.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.1% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-04-11 · updated 2026-06-17
- Weakness: CWE-73
Description
NoMachine External Control of File Path Arbitrary File Deletion Vulnerability. This vulnerability allows local attackers to delete arbitrary files 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 environment variables. 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 delete files in the context of root. Was ZDI-CAN-28644.
Affected products
- NoMachine: before 9.4.14 — fixed in 9.4.14
How to fix
Upgrade to a fixed version: NoMachine 9.4.14. Check the vendor advisory for mitigations.
References
Get alerted when CVE-2026-5053 or the next vulnerability affects your stack