CVE-2026-5053
highpriority · track · 10EPSS 0.002 · 4 %ileexploit · PoCDEEUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
exploits (1)
Public proof-of-concept and weaponised exploit code.
- do4choo/CVE-2026-5053_NoMachine_LPECVE-2026-5053PoC · poc_in_github
affected products (4)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-0927NoMachine: Mehrere SchwachstellenDeutsch2026-03-30csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in NoMachine ausnutzen, um Dateien zu manipulieren, und um seine Privilegien zu erhöhen.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (4)
External citations — patches, advisories, analysis.
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