Security readout for executives and security teams
Plain-English summary
This is a local crash risk in NoMachine on Windows 10. A user already on the machine could trigger a blue-screen denial of service through the nxfs.sys driver used by DokanFS. The source bundle does not show remote compromise, data theft, or known active exploitation.
Executive priority
Treat this as operational resilience work, not an emergency breach response. Patch exposed NoMachine Windows 10 systems, especially shared or high-availability hosts, because local users could cause disruptive outages.
Technical view
CVE-2018-20029 concerns nxfs.sys in DokanFS library 0.6.0 as used by NoMachine before 6.4.6 on Windows 10. The reported issue is uninitialized memory read leading to denial of service. Affected-product metadata is incomplete, but the description identifies NoMachine before 6.4.6.
Likely exposure
Exposure is most likely on Windows 10 endpoints or servers running NoMachine versions earlier than 6.4.6. Risk is lower where users lack local access or NoMachine is not installed.
Exploitation context
The source bundle describes local-user denial of service only. It does not cite public exploitation, CISA KEV listing, remote exploitation, privilege escalation, or reliable exploit availability.
Researcher notes
The available evidence is narrow: local DoS via uninitialized memory read in nxfs.sys, tied to NoMachine before 6.4.6 on Windows 10. The bundle provides no CVSS, CWE, exploit detail, or broad affected CPE data.
Mitigation direction
- Identify Windows 10 systems with NoMachine installed.
- Upgrade NoMachine to version 6.4.6 or later.
- Check NoMachine advisory TR11P08975 for vendor-specific guidance.
- Restrict local interactive access to systems running vulnerable versions.
- Prioritize shared workstations, jump hosts, and remote-access systems.
Validation and detection
- Confirm installed NoMachine versions on Windows 10 assets.
- Check whether nxfs.sys is present on in-scope systems.
- Review crash or BSOD records for unexplained NoMachine-related failures.
- Verify remediation by confirming NoMachine is 6.4.6 or later.
- Document systems where affected-version evidence is inconclusive.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2018-20029 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://www.nomachine.com/TR11P08975CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.