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
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| NoMachine | NoMachine | 9.3.7 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
GitHub 1 repository
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do4choo/CVE-2026-5053_NoMachine_LPE ★ 0 · Oct 27, 2026
CVE-2026-5053: Writeup + PoC
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 1
- WID-SEC-2026-0927 NoMachine: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 28, 2026