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.
https://bugzilla.redhat.com/show_bug.cgi?id=2372406
https://access.redhat.com/security/cve/CVE-2025-6021
Source: Mitre, NVD
Published: 2025-06-12
Updated: 2025-06-12
Base Score: 7.8
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C
Severity: High
Base Score: 7.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS: 0.0004