CVE-2025-12748
MEDIUM EPSS 7.8%
Published Nov 11, 20257mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Published Nov 11, 2025 7mo ago
Last Modified Jun 17, 2026 1w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High
Threat Intelligence
EPSS Exploit Probability
7.8% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-770
References 4
- access.redhat.com https://access.redhat.com/errata/RHSA-2026:18326
- access.redhat.com https://access.redhat.com/errata/RHSA-2026:18748
- access.redhat.com https://access.redhat.com/security/cve/CVE-2025-12748
- bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=2413801
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.