CVE-2025-14525

Kubevirt: kubevirt: vm administration denial of service via guest agent

Published Jan 26, 2026 CVSS 3.1 · 6.4 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

Vendor Workaround

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-25mh-hp8x-cgrv KubeVirt Guest Agent DoS via Excessive Network Interface Reports
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description No description is available for this CVE. 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.
Title kubevirt: kubevirt: VM administration denial of service via guest agent Kubevirt: kubevirt: vm administration denial of service via guest agent
First Time appeared Redhat
Redhat container Native Virtualization
CPEs cpe:/a:redhat:container_native_virtualization:4
Vendors & Products Redhat
Redhat container Native Virtualization
References
Type Values Removed Values Added
Description No description is available for this CVE.
Title kubevirt: kubevirt: VM administration denial of service via guest agent
Weaknesses CWE-770
References
Metrics threat_severity

None

cvssV3_1

{'score': 6.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:L'}

threat_severity

Moderate

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Jan 26, 2026, 8:59 PM
Reserved
Dec 11, 2025, 8:19 AM
Status
Deferred
Published
Jan 26, 2026, 8:16 PM
Modified
Jun 17, 2026, 8:36 AM
Severity
Moderate
Public date
Jan 9, 2026, 2:02 AM