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Vulnerability record · CVE-2023-39107 · published 4 August 2023

CVE-2023-39107: Nomachine link following vulnerability

Nomachine · Nomachine

An arbitrary file overwrite vulnerability in NoMachine Free Edition and Enterprise Client for macOS before v8.8.1 allows attackers to overwrite root-owned files by using hardlinks.

9.1 CVSS 3.1 Critical EPSS 1.2% · top 32.6% CWE-59 · Link following
9.1CVSS 3.1 base score
1.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

An arbitrary file overwrite vulnerability in NoMachine Free Edition and Enterprise Client for macOS before v8.8.1 allows attackers to overwrite root-owned files by using hardlinks.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://kb.nomachine.com/SU07U00247 Release Notes
https://kb.nomachine.com/TR07U10948 Vendor Advisory
https://www.ns-echo.com/posts/nomachine_afo.html Exploit
https://kb.nomachine.com/SU07U00247 Release Notes
https://kb.nomachine.com/TR07U10948 Vendor Advisory
https://www.ns-echo.com/posts/nomachine_afo.html Exploit

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2023-39107), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.