CVE-2025-64434

medium

Description

KubeVirt is a virtual machine management add-on for Kubernetes. Prior to 1.5.3 and 1.6.1, due to the peer verification logic in virt-handler (via verifyPeerCert), an attacker who compromises a virt-handler instance, could exploit these shared credentials to impersonate virt-api and execute privileged operations against other virt-handler instances potentially compromising the integrity and availability of the VM managed by it. This vulnerability is fixed in 1.5.3 and 1.6.1.

References

https://github.com/kubevirt/kubevirt/security/advisories/GHSA-ggp9-c99x-54gp

https://github.com/kubevirt/kubevirt/commit/b9773bc588e6e18ece896a2dad5336ef7a653074

https://github.com/kubevirt/kubevirt/commit/af2f08a9a186eccc650f87c30ab3e07b669e8b5b

https://github.com/kubevirt/kubevirt/commit/231dc69723f331dc02f65a31ab4c3d6869f40d6a

https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-38216

Details

Source: Mitre, NVD

Published: 2025-11-07

Updated: 2025-11-25

Named Vulnerability: GO-2025-4107Named Vulnerability: GHSA-ggp9-c99x-54gp

Risk Information

CVSS v2

Base Score: 5.5

Vector: CVSS2#AV:L/AC:H/Au:S/C:N/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 6.3

Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H

Severity: Medium

EPSS

EPSS: 0.00198