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CVE-2020-24394

Affected software2 products, listed below
Severity7.1 High CVSS 3.1 2 scores
WeaknessIncorrect permission assignment (CWE-732)
Published19 Aug 2020
Updated17 Jun 2026

Description

In the Linux kernel before 5.7.8, fs/nfsd/vfs.c (in the NFS server) can set incorrect permissions on new filesystem objects when the filesystem lacks ACL support, aka CID-22cf8419f131. This occurs because the current umask is not considered.

Exploitation status

No public exploit

No exploit has been reported in the sources we check. Published 6 years ago.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment no assessment published
  • Indexed PoC none indexed
  • EPSS 0.36% 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

7.1 HIGH v3.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N 2 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 7.1 HIGH CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N NVD Primary published
CVSS 2.0 3.6 none AV:L/AC:L/Au:N/C:P/I:P/A:N NVD Primary

Affected software and releases

Products and versions

5 products, 13 version entries
SourceVendorProductSchemeAffected versions
nvd canonical ubuntu linux generic 14.04 · 16.04 · 18.04 · 20.04
nvd linux linux kernel generic < 5.7.8
nvd opensuse leap generic 15.1
nvd oracle sd-wan edge generic 8.2
nvd starwindsoftware starwind virtual san generic v8:build12533 · v8:build12658 · v8:build12859 · v8:build13170 · v8:build13586 · v8:build13861

References

URLTags
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00007.html Third Party Advisory
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=962254 Issue Tracking, Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.8 Release Notes, Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=22cf8419f1319ff87ec759d0ebdff4cbafaee832 Patch, Vendor Advisory
https://security.netapp.com/advisory/ntap-20200904-0003/ Third Party Advisory
https://usn.ubuntu.com/4465-1/ Third Party Advisory
https://usn.ubuntu.com/4483-1/ Third Party Advisory
https://usn.ubuntu.com/4485-1/ Third Party Advisory
https://www.oracle.com/security-alerts/cpuApr2021.html Patch, Third Party Advisory
https://www.starwindsoftware.com/security/sw-20210325-0004/ Third Party Advisory

Timeline

Published2020-08-19By the CVE Program.
NVD record modified2026-06-17NVD's own last-modified date for this record.