CVE-2020-14323

Name: CVE-2020-14323
Creator: NVD / NIST
Published: 2020-10-29T20:15:17.117+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.61%

Last modified Jun 17, 2026

CVE-2020-14323 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. A null pointer dereference flaw was found in samba's Winbind service in versions before 4.11.15, before 4.12.9 and before 4.13.1. A local user could use this flaw to crash the winbind service causing denial of service.. EPSS estimates a 0.61% chance of exploitation in the next 30 days.

Description

A null pointer dereference flaw was found in samba's Winbind service in versions before 4.11.15, before 4.12.9 and before 4.13.1. A local user could use this flaw to crash the winbind service causing denial of service.

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

0.61%

44.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Samba	Samba	>= 3.6.0, < 4.11.15
Samba	Samba	>= 4.12.0, < 4.12.9
Samba	Samba	>= 4.13.0, < 4.13.1
Opensuse	Leap	15.1
Opensuse	Leap	15.2
Fedoraproject	Fedora	32
Fedoraproject	Fedora	33
Debian	Debian Linux	9.0

References

http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00008.htmlThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00012.htmlThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1891685Issue Tracking, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/11/msg00041.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2024/04/msg00015.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JE2M4FE3N3EDXVG4UKSVFPL7SQUGFFDP/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W6HM73N4NEGFW5GIJJGGP6ZZBS6GTXPB/
https://security.gentoo.org/glsa/202012-24Third Party Advisory
https://security.netapp.com/advisory/ntap-20201103-0001/Third Party Advisory
https://www.samba.org/samba/security/CVE-2020-14323.htmlVendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00008.htmlThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00012.htmlThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1891685Issue Tracking, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/11/msg00041.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2024/04/msg00015.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JE2M4FE3N3EDXVG4UKSVFPL7SQUGFFDP/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W6HM73N4NEGFW5GIJJGGP6ZZBS6GTXPB/
https://security.gentoo.org/glsa/202012-24Third Party Advisory
https://security.netapp.com/advisory/ntap-20201103-0001/Third Party Advisory
https://www.samba.org/samba/security/CVE-2020-14323.htmlVendor Advisory

Timeline

Published: Oct 29, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-14323?

How severe is CVE-2020-14323?

CVE-2020-14323 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.61% probability of exploitation in the next 30 days.

How do I fix CVE-2020-14323?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-14323?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST