Certain NFS servers allow users to use mknod to gain privileges by creating a writable…
Priority LOW 39CWE-269Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Privilege escalation
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-269.
Summary
Certain NFS servers allow users to use mknod to gain privileges by creating a writable kmem device and setting the UID to 0.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00411 35th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-1999-0084
- 2026-10-03 Alias added: GHSA-v3vm-mf33-hv7v
References
—
More Sun Nfs vulnerabilities
- TI-1999-00167 NFS allows attackers to read and write any file on the system by specifying a false UID. CVSS 2.0HIGH 10.0
- TI-1999-00163 NFS cache poisoning. CVSS 2.0HIGH 10.0
- TI-1999-00164 NFS allows users to use a "cd .." command to access other directories besides the exported file system. CVSS 2.0MEDIUM 5.0
Sources
- CVE-1999-0084 · CVE Program
- CVE-1999-0084 · NVD
- FIRST EPSS
- GHSA-v3vm-mf33-hv7v · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences