VULNERABILITY INTELLIGENCE

CVE-2018-16871

CVSS score7.5 HIGH
EPSS probability2.70%
CISA KEVNot currently listed
Published2019-07-30
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

A flaw was found in the Linux kernel's NFS implementation, all versions 3.x and all versions 4.x up to 4.20. An attacker, who is able to mount an exported NFS filesystem, is able to trigger a null pointer dereference by using an invalid NFS sequence. This can panic the machine and deny access to the NFS server. Any outstanding disk writes to the NFS server will be lost.

Weakness classification

  • CWE-476: NULL Pointer Dereference

Primary references