CVE-2025-14525 MEDIUM

CVE-2025-14525: Kubevirt: kubevirt: vm administration denial of service via guest agent

Vendor Red Hat
Product Red Hat OpenShift Virtualization 4
Weakness CWE-770 · Uncontrolled resource consumption
Published January 26, 2026
Last update January 26, 2026

CVSS base score

6.4/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality None
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:L

What the vulnerability does

01Description

A flaw was found in kubevirt. A user within a virtual machine (VM), if the guest agent is active, can exploit this by causing the agent to report an excessive number of network interfaces. This action can overwhelm the system's ability to store VM configuration updates, effectively blocking changes to the Virtual Machine Instance (VMI). This allows the VM user to restrict the VM administrator's ability to manage the VM, leading to a denial of service for administrative operations.

Key dates

02Disclosure timeline

January 26, 2026 CVE published
January 26, 2026 Record updated