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CVE-2018-16871

Affected software3 products, listed below
Severity7.5 High CVSS 3.1 3 scores
WeaknessCWE-476
Published30 Jul 2019
Updated17 Jun 2026

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.

Exploitation status

No public exploit

No exploit has been reported in the sources we check. Published 7 years ago.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment no assessment published
  • Indexed PoC none indexed
  • EPSS 2.7% chance in 30 days

Waratek protection

Outside Waratek scope

A Java vulnerability, but not one Waratek protects. It affects only Java on a user's desktop (applets, Web Start, JavaFX, the installer), sits in a product the Waratek agent can't be installed into, or is in a package we don't expect in business applications. The decision below says which.

  • Protection none
  • Action not pursued none
  • Review human Researcher
  • Record active
Decided by Manual classification of this CVE in the legacy dataset
Finding A manual classification set this CVE's status to Outside Waratek scope, but the CVE names a tracked product.

CVSS

7.5 HIGH v3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H 3 metrics

We show the highest score from the newest CVSS version. Scores from different versions can't be compared, and the first score listed is sometimes a 0.0 placeholder.

VersionScoreBandVectorAssignerType
CVSS 3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H NVD Primary published
CVSS 3.0 7.5 HIGH CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H secalert@redhat.com Secondary
CVSS 2.0 5.0 none AV:N/AC:L/Au:N/C:N/I:N/A:P NVD Primary

Affected software and releases

Products and versions

20 products, 22 version entries
SourceVendorProductSchemeAffected versions
nvd linux linux kernel generic ≥ 3.0 and ≤ 4.20
nvd netapp cloud backup generic any version
nvd netapp h300e firmware generic any version
nvd netapp h300s firmware generic any version
nvd netapp h410c firmware generic any version
nvd netapp h410s firmware generic any version
nvd netapp h500e firmware generic any version
nvd netapp h500s firmware generic any version
nvd netapp h700e firmware generic any version
nvd netapp h700s firmware generic any version
nvd redhat developer tools generic 1.0
nvd redhat enterprise linux generic 7.0
nvd redhat enterprise linux desktop generic 7.0
nvd redhat enterprise linux eus generic 7.4
nvd redhat enterprise linux server generic 7.0
nvd redhat enterprise linux server aus generic 7.4 · 7.6
nvd redhat enterprise linux server eus generic 7.6
nvd redhat enterprise linux server tus generic 7.4 · 7.6
nvd redhat enterprise linux workstation generic 7.0
nvd redhat mrg realtime generic 2.0

References

URLTags
https://access.redhat.com/errata/RHSA-2019:2696 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2730 Third Party Advisory
https://access.redhat.com/errata/RHSA-2020:0740 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16871 Issue Tracking, Third Party Advisory
https://security.netapp.com/advisory/ntap-20211004-0002/ Third Party Advisory
https://support.f5.com/csp/article/K18657134 Third Party Advisory
https://support.f5.com/csp/article/K18657134?utm_source=f5support&amp%3Butm_medium=RSS

Timeline

Published2019-07-30By the CVE Program.
NVD record modified2026-06-17NVD's own last-modified date for this record.