Privilege escalation in Sun Nfs

CVE-1999-0084

Certain NFS servers allow users to use mknod to gain privileges by creating a writable kmem device and setting the UID to 0.

Vulnerability class: Privilege Escalation

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (32.8th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 32.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-1999-0084: held from 0.004 to 0.004.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: -0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-1999-0084?
CVE-1999-0084 is a high-severity vulnerability in Sun Nfs, classified under Improper Privilege Management. CVSS score: 8.4/10. Published 1990-05-01.
How severe is CVE-1999-0084?
High severity. CVSS v3 base score is 8.4 out of 10.
Is CVE-1999-0084 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.