This CVE was assigned for a libxml2 issue#1012 but later deemed not valid. Ref.: https://gitlab.gnome.org/GNOME/libxml2/-/issues/1012#note_2608283

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

No data.

No data.

No data.

References
Link Providers
https://nvd.nist.gov/vuln/detail/CVE-2025-12863 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-12863 cve-icon
History

Thu, 20 Nov 2025 15:30:00 +0000

Type Values Removed Values Added
References

Thu, 20 Nov 2025 13:15:00 +0000

Type Values Removed Values Added
Title Libxml2: namespace use-after-free in xmlsettreedoc() function of libxml2 libxml2: Namespace Use-After-Free in xmlSetTreeDoc() function of libxml2
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Thu, 20 Nov 2025 12:30:00 +0000

Type Values Removed Values Added
Description A flaw was found in the xmlSetTreeDoc() function of the libxml2 XML parsing library. This function is responsible for updating document pointers when XML nodes are moved between documents. Due to improper handling of namespace references, a namespace pointer may remain linked to a freed memory region when the original document is destroyed. As a result, subsequent operations that access the namespace can lead to a use-after-free condition, causing an application crash. This CVE was assigned for a libxml2 issue#1012 but later deemed not valid. Ref.: https://gitlab.gnome.org/GNOME/libxml2/-/issues/1012#note_2608283
CPEs cpe:/a:redhat:jboss_core_services:1
cpe:/a:redhat:openshift:4
cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
Redhat jboss Core Services
Redhat openshift

Sat, 08 Nov 2025 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 threat_severity

Important

Fri, 07 Nov 2025 22:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Fri, 07 Nov 2025 21:15:00 +0000

Type Values Removed Values Added
Description A flaw was found in the xmlSetTreeDoc() function of the libxml2 XML parsing library. This function is responsible for updating document pointers when XML nodes are moved between documents. Due to improper handling of namespace references, a namespace pointer may remain linked to a freed memory region when the original document is destroyed. As a result, subsequent operations that access the namespace can lead to a use-after-free condition, causing an application crash.
Title Libxml2: namespace use-after-free in xmlsettreedoc() function of libxml2
First Time appeared Redhat
Redhat enterprise Linux
Redhat jboss Core Services
Redhat openshift
Weaknesses CWE-416
CPEs cpe:/a:redhat:jboss_core_services:1
cpe:/a:redhat:openshift:4
cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
Redhat jboss Core Services
Redhat openshift
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}
cve-icon MITRE

Status: REJECTED

Assigner: redhat

Published: 2025-11-07T20:59:35.021Z

Updated: 2025-11-20T12:11:37.790Z

Reserved: 2025-11-07T10:30:42.765Z

Link: CVE-2025-12863

cve-icon Vulnrichment

Updated:

cve-icon NVD

Status : Rejected

Published: 2025-11-07T21:15:40.393

Modified: 2025-11-20T15:17:23.673

Link: CVE-2025-12863

cve-icon Redhat

Severity : Important

Publid Date: 2025-11-07T00:00:00Z

Links: CVE-2025-12863 - Bugzilla