CVE-2023-39107 json
An arbitrary file overwrite vulnerability in NoMachine Free Edition and Enterprise Client for macOS before v8.8.1 allows attackers to overw…
published 2023-08-04 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-42853
- cvss
- 9.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.2%
- EPSS 1.2% chance of exploitation in 30 days, percentile 68%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- nomachine enterprise_client v8.8.1
- nomachine free_edition v8.8.1
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- total
- Assessed
- 2 y ago
Exploit prediction
1.22% chance of exploitation in the next 30 days, higher than 68% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- ns-echo.com https://www.ns-echo.com/posts/nomachine_afo.html referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H |
Affected products
- nomachine enterprise_client
- nomachine free_edition
Classification
- Weakness
-
- CWE-59 Improper Link Resolution Before File Access
References
-
ns-echo.com
/posts/nomachine_afo.html
exploit
-
kb.nomachine.com
/TR07U10948
vendor-advisory
-
kb.nomachine.com
/SU07U00247
release-notes
Sources
- CVE List CVE-2023-39107
- NVD CVE-2023-39107
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.