CVE-2019-19956

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

5.62% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 92.8% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-10-14.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2019-12-24 15:12Z6 YR AGO

Last updated

2026-10-14 07:57Z15 DAYS AGO

Reserved

2019-12-24

Assigning CNA

mitre

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

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

Weaknesses

• CWE-772Missing Release of Resource after Effective LifetimeBase
• CWE-401Missing Release of Memory after Effective LifetimeVariant

Data version

5.2

Document digest

dfcc1f8a8b58640e8568a044e0e7be14f2b04ca03ab2039f2a20df85b89ea09c

• lists.debian.org[debian-lts-announce] 20191228 [SECURITY] [DLA 2048-1] libxml2 security updatehttps://lists.debian.org/debian-lts-announce/2019/12/msg00032.htmlmailing-listx_refsource_MLIST
• usn.ubuntu.comUSN-4274-1https://usn.ubuntu.com/4274-1/vendor-advisoryx_refsource_UBUNTU
• lists.fedoraproject.orgFEDORA-2020-0c71c00af4https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5R55ZR52RMBX24TQTWHCIWKJVRV6YAWI/vendor-advisoryx_refsource_FEDORA
• lists.fedoraproject.orgFEDORA-2020-7694e8be73https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JDPF3AAVKUAKDYFMFKSIQSVVS3EEFPQH/vendor-advisoryx_refsource_FEDORA
• lists.opensuse.orgopenSUSE-SU-2020:0681http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00047.htmlvendor-advisoryx_refsource_SUSE
• lists.opensuse.orgopenSUSE-SU-2020:0781http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00005.htmlvendor-advisoryx_refsource_SUSE
• www.oracle.comhttps://www.oracle.com/security-alerts/cpujul2020.htmlx_refsource_MISC
• gitlab.gnome.orghttps://gitlab.gnome.org/GNOME/libxml2/commit/5a02583c7e683896d84878bd90641d8d9b0d0549x_refsource_MISC
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20200114-0002/x_refsource_CONFIRM
• lists.debian.org[debian-lts-announce] 20200909 [SECURITY] [DLA 2369-1] libxml2 security updatehttps://lists.debian.org/debian-lts-announce/2020/09/msg00009.htmlmailing-listx_refsource_MLIST
• cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/pdf/ssa-292794.pdfx_refsource_CONFIRM
• us-cert.cisa.govhttps://us-cert.cisa.gov/ics/advisories/icsa-21-103-08x_refsource_CONFIRM
• cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-292794.html
• cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-398330.html