CVE-2025-12748
Published: Nov 11, 2025
Modified: May 19, 2026
CVSS v3.1
5.5
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.
| Vendor | Product | Versions |
|---|---|---|
Unknown | libvirt | affected 0 - <= 11.9.0 |
Red Hat | Red Hat Enterprise Linux 10 | unaffected 0:11.10.0-12.el10_2 - < * |
Red Hat | Red Hat Enterprise Linux 9 | unaffected 0:11.10.0-12.el9_8 - < * |
Red Hat | Red Hat Enterprise Linux 6 | All versions |
Red Hat | Red Hat Enterprise Linux 7 | All versions |
Red Hat | Red Hat Enterprise Linux 8 | All versions |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
References
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