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CRITICAL

CVE-2023-39107

CVSS v3

9.1

CRITICAL

EPSS Score

1.2 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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.

Technical details

Published
2023-08-04

Frequently asked questions

What is CVE-2023-39107?

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.

Is CVE-2023-39107 actively exploited?

Active exploitation of CVE-2023-39107 has not been confirmed. Its EPSS score was 1.2% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2023-39107?

CVE-2023-39107 has a CVSS v3 base score of 9.1 (CRITICAL severity).

Is CVE-2023-39107 affecting your environment?

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