CVE-2025-64324

high

Description

KubeVirt is a virtual machine management add-on for Kubernetes. The `hostDisk` feature in KubeVirt allows mounting a host file or directory owned by the user with UID 107 into a VM. However, prior to version 1.6.1 and 1.7.0, the implementation of this feature and more specifically the `DiskOrCreate` option (which creates a file if it doesn't exist) has a logic bug that allows an attacker to read and write arbitrary files owned by more privileged users on the host system. Versions 1.6.1 and 1.7.0 fix the issue.

References

https://github.com/kubevirt/kubevirt/security/advisories/GHSA-46xp-26xh-hpqh

https://github.com/kubevirt/kubevirt/pull/15037

https://github.com/kubevirt/kubevirt/commit/ff3b69b08b6b9c8d08d23735ca8d82455f790a69

https://github.com/kubevirt/kubevirt/commit/00d03e43e3bf03e563136695a4732b65ed42d764

Details

Source: Mitre, NVD

Published: 2025-11-18

Updated: 2025-11-25

Risk Information

CVSS v2

Base Score: 6.6

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

Severity: Medium

CVSS v3

Base Score: 7.7

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

Severity: High

CVSS v4

Base Score: 8.5

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Severity: High

EPSS

EPSS: 0.00013