Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2025-6021

Severity CVSS v4.0:
Pending analysis
Type:
CWE-190 Integer Overflow or Wraparound
Publication date:
12/06/2025
Last modified:
06/02/2026

Description

A flaw was found in libxml2's xmlBuildQName function, where integer overflows in buffer size calculations can lead to a stack-based buffer overflow. This issue can result in memory corruption or a denial of service when processing crafted input.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
7.50
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:* 2.14.4 (excluding)
cpe:2.3:a:redhat:jboss_core_services:-:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_container_platform:4.12:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_container_platform:4.13:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_container_platform:4.14:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_container_platform:4.15:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_container_platform:4.16:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_container_platform:4.17:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_container_platform:4.18:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_container_platform_for_arm64:4.13:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_container_platform_for_arm64:4.14:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_container_platform_for_arm64:4.15:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_container_platform_for_arm64:4.16:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_container_platform_for_arm64:4.17:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_container_platform_for_arm64:4.18:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools