CVE-2025-64436 MEDIUM

CVE-2025-64436: KubeVirt Excessive Role Permissions Could Enable Unauthorized VMI Migrations Between Nodes

Vendor Kubevirt
Product kubevirt
Weakness CWE-269
Published November 7, 2025
Last update November 10, 2025

CVSS base score

6.9/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

What the vulnerability does

01Description

KubeVirt is a virtual machine management add-on for Kubernetes. In 1.5.0 and earlier, the permissions granted to the virt-handler service account, such as the ability to update VMI and patch nodes, could be abused to force a VMI migration to an attacker-controlled node. This vulnerability could otherwise allow an attacker to mark all nodes as unschedulable, potentially forcing the migration or creation of privileged pods onto a compromised node.

Key dates

02Disclosure timeline

November 7, 2025 CVE published
November 10, 2025 Record updated