VULNERABILITY INTELLIGENCE
CVE-2025-12748
CVSS score5.5 MEDIUM
EPSS probability0.22%
CISA KEVNot currently listed
Published2025-11-11
Last modified2026-10-18
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Description
A flaw was discovered in libvirt in the XML file processing. More specifically, the parsing of user provided XML files was performed before the ACL checks. A malicious user with limited permissions could exploit this flaw by submitting a specially crafted XML file, causing libvirt to allocate too much memory on the host. The excessive memory consumption could lead to a libvirt process crash on the host, resulting in a denial-of-service condition.
Weakness classification
- secalert@redhat.com: CWE-770