What is CVE-2025-64436?

CVE-2025-64436 is a medium-severity vulnerability in Kubevirt, classified under Improper Privilege Management. CVSS score: 5.3/10. Published 2025-11-07.

How severe is CVE-2025-64436?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Privilege escalation in Kubevirt

CVE-2025-64436

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…

Vulnerability class: Privilege Escalation

EPSS: 0.003 (17.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

Affected products

Kubevirt — versions <= 1.5.0

Weakness classification (CWE)

CWE-269 — Improper Privilege Management
CWE-276 — Incorrect Default Permissions

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)

Frequently asked questions

What is CVE-2025-64436?: CVE-2025-64436 is a medium-severity vulnerability in Kubevirt, classified under Improper Privilege Management. CVSS score: 5.3/10. Published 2025-11-07.
How severe is CVE-2025-64436?: Medium severity. CVSS v3 base score is 5.3 out of 10.