Vulnerability in Kubevirt

CVE-2025-64437

KubeVirt is a virtual machine management add-on for Kubernetes. In versions before 1.5.3 and 1.6.1, the virt-handler does not verify whether the launcher-sock is a symlink or a regular file. This oversight can be exploited, for example, to…

EPSS: 0.002 (11.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.0 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L.

Affected products

  • Kubevirt — versions >= 1.6.0-alpha.0, < 1.6.1, < 1.5.3, 1.6.0

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-64437?
CVE-2025-64437 is a medium-severity vulnerability in Kubevirt, classified under Improper Link Resolution Before File Access. CVSS score: 5.0/10. Published 2025-11-07.
How severe is CVE-2025-64437?
Medium severity. CVSS v3 base score is 5.0 out of 10.