CVE-2025-64436
Published: 07 November 2025
Summary
CVE-2025-64436 is a medium-severity Improper Privilege Management (CWE-269) vulnerability in Kubevirt Kubevirt. Its CVSS base score is 6.9 (Medium).
Operationally, ranked at the 27.8th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-38214
Vulnerability details
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…
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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.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Policy addresses roles, responsibilities, and privilege management to prevent improper privilege assignments.
Implements core proper privilege management by restricting to only required rights.
Baseline configuration documents and controls privilege assignments, making improper privilege management harder to introduce or sustain.
Requiring the most restrictive settings instead of defaults prevents incorrect default permissions on resources.
Defines roles and responsibilities to ensure proper privilege management during configuration changes.
Designates roles and review processes for managing physical privileges and access rights.
Tailoring explicitly overrides or scopes default permission assignments in the baseline to match the system's actual risk and operational needs.
Centralized privilege assignment and oversight prevent ad-hoc or excessive privilege grants that occur when each system is configured independently.