CVE-2020-14323

MEDIUMNVD 5.55.5—

5.5

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.

CVSS v3: 5.5
EG Score: 5.5(medium)
EPSS: 62.3%
KEV: Not listed

Published

October 29, 2020

Last Modified

November 21, 2024

References (20)

secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2020-11/msg00008.html
secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2020-11/msg00012.html
secalert@redhathttps://bugzilla.redhat.com/show_bug.cgi?id=1891685
secalert@redhathttps://lists.debian.org/debian-lts-announce/2020/11/msg00041.html
secalert@redhathttps://lists.debian.org/debian-lts-announce/2024/04/msg00015.html
secalert@redhathttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JE2M4FE3N3EDXVG4UKSVFPL7SQUGFFDP/
secalert@redhathttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W6HM73N4NEGFW5GIJJGGP6ZZBS6GTXPB/
secalert@redhathttps://security.gentoo.org/glsa/202012-24
secalert@redhathttps://security.netapp.com/advisory/ntap-20201103-0001/
secalert@redhathttps://www.samba.org/samba/security/CVE-2020-14323.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00008.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00012.html
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=1891685
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2020/11/msg00041.html
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/04/msg00015.html

Patch Availability(6)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
ubuntu	winbind (2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11) @ trusty	2026-05-23	ubuntu
ubuntu	winbind (2:4.3.11+dfsg-0ubuntu0.16.04.32) @ xenial	2026-05-23	ubuntu
redhat	samba-0:4.11.6-112.el7rhgs	2021-10-05	redhat
redhat	samba-0:4.13.3-3.el8	2021-05-18	redhat
redhat	samba-0:4.13.7-101.el8rhgs	2021-05-05	redhat
redhat	samba-0:4.10.16-9.el7_9	2020-12-15	redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(7)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 11× in last 7d / 19× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-29 13:42 UTCepss_batch
2026-05-29 13:42 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-23 05:50 UTCEG score recompute
2026-05-23 05:50 UTCVendor advisory
2026-05-23 05:49 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2020-14323?

CVE-2020-14323 is a medium vulnerability published on October 29, 2020. 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.

When was CVE-2020-14323 disclosed?

CVE-2020-14323 was first published in the National Vulnerability Database on October 29, 2020, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2020-14323 actively exploited?

CVE-2020-14323 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 62.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2020-14323?

CVE-2020-14323 has a CVSS v3 base score of 5.5 (NVD).

How do I remediate CVE-2020-14323?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-14323, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2020-14323

Explore →

Is Your Infrastructure Affected by CVE-2020-14323?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs

CVE-2020-14323

Published

Last Modified

References (20)

Patch Availability(6)

Weakness Classification(2)

All Vendor Advisories

Data Freshness Timeline

Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2020-14323?

Same vendor

Same CWE

CVE-2020-14323

📅 Published

🔄 Last Modified

🔗 References (20)

Patch Availability(6)

Weakness Classification(2)

All Vendor Advisories

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2020-14323?

🔗 Related CVEs(same vendor + same CWE)

Same vendor

Same CWE

Published

Last Modified

References (20)

Frequently asked(5)

Related CVEs(same vendor + same CWE)