CVE-2019-8936

Name: CVE-2019-8936
Creator: NVD / NIST
Published: 2019-05-15T16:29:01.223+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 5.73%

Last modified Jun 17, 2026

CVE-2019-8936 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. NTP through 4.2.8p12 has a NULL Pointer Dereference.. EPSS estimates a 5.73% chance of exploitation in the next 30 days.

Description

NTP through 4.2.8p12 has a NULL Pointer Dereference.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

5.73%

92.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-476

Affected Software

Vendor	Product	Versions
Netapp	Clustered Data Ontap	< 9.2
Netapp	Data Ontap	All versions
Fedoraproject	Fedora	28
Fedoraproject	Fedora	29
Fedoraproject	Fedora	30
Opensuse	Leap	15.0
Opensuse	Leap	42.3
Hpe	Hpux-Ntp	< c.4.2.8.4.0
Ntp	Ntp	< 4.2.8
Ntp	Ntp	4.2.8

References

http://bugs.ntp.org/show_bug.cgi?id=3565Exploit, Issue Tracking, Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00032.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00036.htmlMailing List, Third Party Advisory
http://packetstormsecurity.com/files/152915/FreeBSD-Security-Advisory-FreeBSD-SA-19-04.ntp.htmlThird Party Advisory, VDB Entry
http://support.ntp.org/bin/view/Main/SecurityNoticeRelease Notes, Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2NVS2CSG2TQ663CXOZZUJN4STQPMENNP/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JBGXY7OKWOLT6X6JAPVZRFEP4FLCGGST/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KQDNHNYOJK2SRSGO23GQ2RXTOUY2HLNN/
https://seclists.org/bugtraq/2019/May/39Issue Tracking, Mailing List, Third Party Advisory
https://security.FreeBSD.org/advisories/FreeBSD-SA-19:04.ntp.ascMitigation, Third Party Advisory
https://security.gentoo.org/glsa/201903-15Third Party Advisory
https://security.netapp.com/advisory/ntap-20190503-0001/Patch, Third Party Advisory
https://support.f5.com/csp/article/K61363039Third Party Advisory
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03962en_usThird Party Advisory
https://usn.ubuntu.com/4563-1/
http://bugs.ntp.org/show_bug.cgi?id=3565Exploit, Issue Tracking, Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00032.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00036.htmlMailing List, Third Party Advisory
http://packetstormsecurity.com/files/152915/FreeBSD-Security-Advisory-FreeBSD-SA-19-04.ntp.htmlThird Party Advisory, VDB Entry
http://support.ntp.org/bin/view/Main/SecurityNoticeRelease Notes, Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2NVS2CSG2TQ663CXOZZUJN4STQPMENNP/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JBGXY7OKWOLT6X6JAPVZRFEP4FLCGGST/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KQDNHNYOJK2SRSGO23GQ2RXTOUY2HLNN/
https://seclists.org/bugtraq/2019/May/39Issue Tracking, Mailing List, Third Party Advisory
https://security.FreeBSD.org/advisories/FreeBSD-SA-19:04.ntp.ascMitigation, Third Party Advisory
https://security.gentoo.org/glsa/201903-15Third Party Advisory
https://security.netapp.com/advisory/ntap-20190503-0001/Patch, Third Party Advisory
https://support.f5.com/csp/article/K61363039Third Party Advisory
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03962en_usThird Party Advisory
https://usn.ubuntu.com/4563-1/

Timeline

Published: May 15, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-8936?

NTP through 4.2.8p12 has a NULL Pointer Dereference.

How severe is CVE-2019-8936?

CVE-2019-8936 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 5.73% probability of exploitation in the next 30 days.

How do I fix CVE-2019-8936?

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-2019-8936?

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

Scan your code now

Source: NVD / NIST