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Vulnerability details: VCID-ugyh-dycm-3bc3
Vulnerability ID VCID-ugyh-dycm-3bc3
Aliases CVE-2019-19956
Summary libxml2: memory leak in xmlParseBalancedChunkMemoryRecover in parser.c
Status Published
Exploitability 0.5
Weighted Severity 6.8
Risk 3.4
Affected and Fixed Packages Package Details
Weaknesses (4)
CWE-772 Missing Release of Resource after Effective Lifetime
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-401 Missing Release of Memory after Effective Lifetime
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3.1 7.5 http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00047.html
ssvc Track http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00047.html
cvssv3.1 7.5 http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00005.html
ssvc Track http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00005.html
cvssv3 7.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-19956.json
epss 0.00154 https://api.first.org/data/v1/epss?cve=CVE-2019-19956
epss 0.00154 https://api.first.org/data/v1/epss?cve=CVE-2019-19956
epss 0.00154 https://api.first.org/data/v1/epss?cve=CVE-2019-19956
epss 0.00154 https://api.first.org/data/v1/epss?cve=CVE-2019-19956
epss 0.00154 https://api.first.org/data/v1/epss?cve=CVE-2019-19956
epss 0.00154 https://api.first.org/data/v1/epss?cve=CVE-2019-19956
epss 0.00154 https://api.first.org/data/v1/epss?cve=CVE-2019-19956
epss 0.00154 https://api.first.org/data/v1/epss?cve=CVE-2019-19956
epss 0.00154 https://api.first.org/data/v1/epss?cve=CVE-2019-19956
cvssv3.1 7.5 https://cert-portal.siemens.com/productcert/pdf/ssa-292794.pdf
ssvc Track https://cert-portal.siemens.com/productcert/pdf/ssa-292794.pdf
cvssv3.1 5.3 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3.1 7.5 https://gitlab.gnome.org/GNOME/libxml2/commit/5a02583c7e683896d84878bd90641d8d9b0d0549
ssvc Track https://gitlab.gnome.org/GNOME/libxml2/commit/5a02583c7e683896d84878bd90641d8d9b0d0549
cvssv3.1 7.5 https://lists.debian.org/debian-lts-announce/2019/12/msg00032.html
ssvc Track https://lists.debian.org/debian-lts-announce/2019/12/msg00032.html
cvssv3.1 7.5 https://lists.debian.org/debian-lts-announce/2020/09/msg00009.html
ssvc Track https://lists.debian.org/debian-lts-announce/2020/09/msg00009.html
cvssv3.1 7.5 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5R55ZR52RMBX24TQTWHCIWKJVRV6YAWI/
ssvc Track https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5R55ZR52RMBX24TQTWHCIWKJVRV6YAWI/
cvssv3.1 7.5 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JDPF3AAVKUAKDYFMFKSIQSVVS3EEFPQH/
ssvc Track https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JDPF3AAVKUAKDYFMFKSIQSVVS3EEFPQH/
cvssv3.1 7.5 https://security.netapp.com/advisory/ntap-20200114-0002/
ssvc Track https://security.netapp.com/advisory/ntap-20200114-0002/
cvssv3.1 7.5 https://us-cert.cisa.gov/ics/advisories/icsa-21-103-08
ssvc Track https://us-cert.cisa.gov/ics/advisories/icsa-21-103-08
cvssv3.1 7.5 https://usn.ubuntu.com/4274-1/
ssvc Track https://usn.ubuntu.com/4274-1/
cvssv3.1 7.5 https://www.oracle.com/security-alerts/cpujul2020.html
ssvc Track https://www.oracle.com/security-alerts/cpujul2020.html
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-19956.json
https://api.first.org/data/v1/epss?cve=CVE-2019-19956
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19956
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
1788856 https://bugzilla.redhat.com/show_bug.cgi?id=1788856
5a02583c7e683896d84878bd90641d8d9b0d0549 https://gitlab.gnome.org/GNOME/libxml2/commit/5a02583c7e683896d84878bd90641d8d9b0d0549
5R55ZR52RMBX24TQTWHCIWKJVRV6YAWI https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5R55ZR52RMBX24TQTWHCIWKJVRV6YAWI/
CVE-2019-19956 https://nvd.nist.gov/vuln/detail/CVE-2019-19956
JDPF3AAVKUAKDYFMFKSIQSVVS3EEFPQH https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JDPF3AAVKUAKDYFMFKSIQSVVS3EEFPQH/
msg00005.html http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00005.html
msg00032.html https://lists.debian.org/debian-lts-announce/2019/12/msg00032.html
ntap-20200114-0002 https://security.netapp.com/advisory/ntap-20200114-0002/
RHSA-2020:2644 https://access.redhat.com/errata/RHSA-2020:2644
RHSA-2020:2646 https://access.redhat.com/errata/RHSA-2020:2646
RHSA-2020:3996 https://access.redhat.com/errata/RHSA-2020:3996
RHSA-2020:4479 https://access.redhat.com/errata/RHSA-2020:4479
RHSA-2021:0949 https://access.redhat.com/errata/RHSA-2021:0949
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00047.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2025-12-03T18:29:09Z/ Found at http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00047.html
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00005.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2025-12-03T18:29:09Z/ Found at http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00005.html
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-19956.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://cert-portal.siemens.com/productcert/pdf/ssa-292794.pdf
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2025-12-03T18:29:09Z/ Found at https://cert-portal.siemens.com/productcert/pdf/ssa-292794.pdf
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://gitlab.gnome.org/GNOME/libxml2/commit/5a02583c7e683896d84878bd90641d8d9b0d0549
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2025-12-03T18:29:09Z/ Found at https://gitlab.gnome.org/GNOME/libxml2/commit/5a02583c7e683896d84878bd90641d8d9b0d0549
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://lists.debian.org/debian-lts-announce/2019/12/msg00032.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2025-12-03T18:29:09Z/ Found at https://lists.debian.org/debian-lts-announce/2019/12/msg00032.html
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://lists.debian.org/debian-lts-announce/2020/09/msg00009.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2025-12-03T18:29:09Z/ Found at https://lists.debian.org/debian-lts-announce/2020/09/msg00009.html
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5R55ZR52RMBX24TQTWHCIWKJVRV6YAWI/
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2025-12-03T18:29:09Z/ Found at https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5R55ZR52RMBX24TQTWHCIWKJVRV6YAWI/
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JDPF3AAVKUAKDYFMFKSIQSVVS3EEFPQH/
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2025-12-03T18:29:09Z/ Found at https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JDPF3AAVKUAKDYFMFKSIQSVVS3EEFPQH/
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://security.netapp.com/advisory/ntap-20200114-0002/
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

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physical

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Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2025-12-03T18:29:09Z/ Found at https://security.netapp.com/advisory/ntap-20200114-0002/
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://us-cert.cisa.gov/ics/advisories/icsa-21-103-08
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

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physical

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Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2025-12-03T18:29:09Z/ Found at https://us-cert.cisa.gov/ics/advisories/icsa-21-103-08
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://usn.ubuntu.com/4274-1/
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

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Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2025-12-03T18:29:09Z/ Found at https://usn.ubuntu.com/4274-1/
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://www.oracle.com/security-alerts/cpujul2020.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

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Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2025-12-03T18:29:09Z/ Found at https://www.oracle.com/security-alerts/cpujul2020.html
Exploit Prediction Scoring System (EPSS)
Percentile 0.3601
EPSS Score 0.00154
Published At April 1, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T14:14:28.933362+00:00 RedHat Importer Import https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-19956.json 38.0.0