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Vulnerability record · CVE-2020-24394 · published 19 August 2020

CVE-2020-24394: Linux kernel incorrect permission assignment vulnerability

Linux · Linux Kernel

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.

7.1 CVSS 3.1 High EPSS 0.36% · top 72.7% CWE-732 · Incorrect permission assignment
7.1CVSS 3.1 base score, v2 3.6
0.36%EPSS exploitation probability, 30 days
NoNot in CISA KEV
5Affected product versions listed by NVD
20References
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Affected products

5 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
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 TrackingThird Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.8 Release NotesVendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=22cf8419f1319ff87ec759d0ebdff4cbafaee832 PatchVendor 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 PatchThird Party Advisory
https://www.starwindsoftware.com/security/sw-20210325-0004/ Third Party Advisory
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 TrackingThird Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.8 Release NotesVendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=22cf8419f1319ff87ec759d0ebdff4cbafaee832 PatchVendor 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 PatchThird Party Advisory
https://www.starwindsoftware.com/security/sw-20210325-0004/ Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2020-24394), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.