Resource exhaustion in libvirt - CVE-2025-12748
Published: November 28, 2025
Vulnerability identifier: #VU118835
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2025-12748
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: libvirt.org
Affected software:
libvirt
libvirt
Detailed vulnerability description
The vulnerability allows a remote user to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources when handling XML files. A remote user can pass a specially crafted XML file to the application, trigger resource exhaustion and perform a denial of service (DoS) attack.
How to mitigate CVE-2025-12748
Install updates from vendor's website.