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CVE-2025-6021

7.5 high SSVC exploitation: poc Modified
NVD · CVE.org

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.

Fix

Patch, vendor advisory and mitigation references on NVD 2

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 7.5 · xmlsoft, redhatNVD modified 2026-10-12 21:17

Affected (CPE criteria) 72

  • cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:*
  • 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:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:openshift_container_platform_for_ibm_z:4.13:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:openshift_container_platform_for_ibm_z:4.14:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:openshift_container_platform_for_ibm_z:4.15:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:openshift_container_platform_for_ibm_z:4.16:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:openshift_container_platform_for_ibm_z:4.17:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:openshift_container_platform_for_ibm_z:4.18:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:openshift_container_platform_for_linuxone:4.13:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:openshift_container_platform_for_linuxone:4.14:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:openshift_container_platform_for_linuxone:4.15:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:openshift_container_platform_for_linuxone:4.16:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:openshift_container_platform_for_linuxone:4.17:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:openshift_container_platform_for_linuxone:4.18:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:openshift_container_platform_for_power:4.13:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:openshift_container_platform_for_power:4.14:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:openshift_container_platform_for_power:4.15:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:openshift_container_platform_for_power:4.16:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:openshift_container_platform_for_power:4.17:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:openshift_container_platform_for_power:4.18:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux_eus:8.4:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux_eus:8.6:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux_eus:8.8:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux_eus:9.4:*:*:*:*:*:*:*
  • and 32 more

References 29