CVE-2025-64436: KubeVirt Excessive Role Permissions Could Enable Unauthorized VMI Migrations Between Nodes
CSIRTS triage
- What
- Excessive role permissions in KubeVirt allow unauthorized migration of virtual machine instances between nodes.
- Who is affected
- KubeVirt deployments with role-based access control misconfigurations.
- Urgency
- Medium severity (CVSS 5.3) privilege escalation; requires high privileges to exploit.
- Action
- Review and restrict KubeVirt RBAC roles to principle of least privilege; apply patched version.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-64436
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2025-644360.26% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 17% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2025-64436 | coverage & exploitation status | NVD · CVE.org |
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