Libvirt: denial of service in xml parsing_CVE-2025-12748

5.5 / 10

MEDIUM

CVSS: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.

Basic Information

ID CVE-2025-12748

Source redhat

Published Nov 11, 2025 at 19:49

Affected Product

Vendor Red Hat

Product Red Hat Enterprise Linux 10

CWE Classification

CWE-770

References

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    "published": "2025-11-11T19:49:32.255Z",
    "modified": "2025-11-11T19:49:32.255Z",
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