CVE-2021-20316

MediumCVSS 6.8/10Last modified Jun 17, 2026

Description

A flaw was found in the way Samba handled file/directory metadata. This flaw allows an authenticated attacker with permissions to read or modify share metadata, to perform this operation outside of the share.

Metrics

CVSS 3.1 6.8/10CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

Weakness enumeration

CWE-362

Affected software

Vendor	Product	Versions
n/a	samba	Affects samba file server before v4.15.0, Fixed in samba v4.15.0

References

https://access.redhat.com/security/cve/CVE-2021-20316Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2009673Issue Tracking, Third Party Advisory
https://bugzilla.samba.org/show_bug.cgi?id=14842Issue Tracking, Vendor Advisory
https://security-tracker.debian.org/tracker/CVE-2021-20316Mitigation, Third Party Advisory
https://security.gentoo.org/glsa/202309-06
https://www.samba.org/samba/security/CVE-2021-20316.htmlVendor Advisory
https://access.redhat.com/security/cve/CVE-2021-20316Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2009673Issue Tracking, Third Party Advisory
https://bugzilla.samba.org/show_bug.cgi?id=14842Issue Tracking, Vendor Advisory
https://security-tracker.debian.org/tracker/CVE-2021-20316Mitigation, Third Party Advisory
https://security.gentoo.org/glsa/202309-06
https://www.samba.org/samba/security/CVE-2021-20316.htmlVendor Advisory

Timeline

Published: Aug 23, 2022
Last modified: Jun 17, 2026
NVD status: Modified

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