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

HIGH

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

Published Sep 29, 1999

8.4

HIGH

CVSS 3.1

EPSS 0.41%

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

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

n/a

Version	Status	Constraints
0	affected	<4.1.3

No remediation recorded yet.

0.41% 0.00411

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 4, 2026.

EPSS probability 0.00411

2022-2026

Table of values (12 key points)

Flat stretches are collapsed. Showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 4, 2026	0.41% (0.00411)	33.09th	v5 (v2026.06.15)
Jun 15, 2026	0.41% (0.00415)	32.88th	v5 (v2026.06.15)
Mar 30, 2025	0.15% (0.00146)	31.73th	v4 (v2025.03.14)
Mar 29, 2025	2.14% (0.02138)	73.65th	v4 (v2025.03.14)
Mar 17, 2025	0.11% (0.00110)	27.02th	v4 (v2025.03.14)
Dec 12, 2024	0.04% (0.00044)	15.20th	v3 (v2023.03.01)
Jun 4, 2024	0.04% (0.00044)	13.00th	v3 (v2023.03.01)
Mar 7, 2023	0.04% (0.00044)	10.97th	v3 (v2023.03.01)
Mar 6, 2023	0.89% (0.00885)	27.89th	v2 (v2022.01.01)
Sep 10, 2022	0.89% (0.00885)	26.24th	v2 (v2022.01.01)
Apr 1, 2022	0.89% (0.00885)	24.24th	v2 (v2022.01.01)
Feb 4, 2022	0.89% (0.00885)	10.50th	v2 (v2022.01.01)