CVE-2026-5053 json
NoMachine External Control of File Path Arbitrary File Deletion Vulnerability
published 2026-04-11 6 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-21651
- cvss
- 7.1
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.1%
- EPSS 0.1% chance of exploitation in 30 days, percentile 3%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- nomachine nomachine 9.4.14
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 6 mo ago
Exploit prediction
0.14% chance of exploitation in the next 30 days, higher than 3% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 7.1 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H |
Affected products
- NoMachine NoMachine
Classification
- Weakness
-
- CWE-73 External Control of File Name or Path
References
-
zerodayinitiative.com
/advisories/ZDI-26-247/
third-party-advisory
Sources
- CVE List CVE-2026-5053
- NVD CVE-2026-5053
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