Allocation of Resources Without Limits or Throttling Affecting libvirt package, versions <11.3.0-3+deb13u2


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.21% (12th percentile)

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  • Snyk IDSNYK-ECHOLATEST-LIBVIRT-18579110
  • published7 Aug 2026
  • disclosed11 Nov 2025

Introduced: 11 Nov 2025

CVE-2025-12748  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

Upgrade Echo:latest libvirt to version 11.3.0-3+deb13u2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libvirt package and not the libvirt package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

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 Base Scores

version 3.1