Security readout for executives and security teams
CVE-2011-3977 affects legacy NoMachine NX Node and NX Server 3.x on Linux. A vulnerable SUID script, nxconfigure.sh, could let a local user read files they should not access. The sources do not provide CVSS scoring, exploit detail, or evidence of active exploitation. Exposure is most likely on older Linux systems still running NoMachine NX Node 3.x or NX Server 3.x below the fixed versions. Modern deployments are unlikely affected unless legacy NX packages remain installed. Treat this as a legacy-platform cleanup and local-access risk. Prioritize internet-facing remote-access servers and shared multi-user Linux systems first. The absence of KEV listing lowers urgency, but arbitrary file read on access infrastructure can expose credentials or sensitive configuration. Mitigation focus: Upgrade NX Node to 3.5.0-4 or later where applicable.; Upgrade NX Server to 3.5.0-5 or later where applicable.; Remove unsupported NoMachine NX 3.x packages if no longer required..
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
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CVE-2011-3977 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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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
- nxserver-nxconfigure-priv-escalation(69974)CVE reference · vdb-entry, x_refsource_XF
Products and packages named in the record
CWE details
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