CVE-2025-64437
Medium · 5.0KubeVirt Isolation Detection Flaw Allows Arbitrary File Permission Changes
CVSS
5.0
EPSS
0.2%
Published
Nov 6, 2025
CISA due date
—
The record
_Short summary of the problem. Make the impact and severity as clear as possible. It is possible to trick the `virt-handler` component into changing the ownership of arbitrary files on the host node to the unprivileged user with UID `107` due to mishandling of symlinks when determining the root mount of a `virt-launcher` pod.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| Go | kubevirt.io/kubevirt | 0 | 1.5.3 |
| Go | kubevirt.io/kubevirt | 1.6.0-alpha.0 | 1.6.1 |
| Chainguard | docker-machine-driver-harvester | 0 | 1.0.6-r4 |
| Wolfi | docker-machine-driver-harvester | 0 | 1.0.6-r4 |
| go | kubevirt.io/kubevirt | 1.6.0-alpha.0 | 1.6.1 |
| openSUSE:Leap 16.0 | kubevirt | 0 | 1.7.0-160000.1.1 |
| openSUSE:Tumbleweed | kubevirt | 0 | 1.6.3-1.1 |
| openSUSE:Tumbleweed | kubevirt-1.8 | 0 | 1.8.3-1.1 |
| openSUSE:Tumbleweed | kubevirt1.8 | 0 | 1.8.3-1.1 |
Related vulnerabilities
- GO-2026-4384 KubeVirt Guest Agent DoS via Excessive Network Interface Reports in kubevirt.io/kubevirt Also affects kubevirt.io/kubevirt
- CVE-2025-14525 A flaw was found in kubevirt. Also affects kubevirt.io/kubevirt
- GO-2025-4105 KubeVirt VMI Denial-of-Service (DoS) Using Pod Impersonation in kubevirt.io/kubevirt Also affects kubevirt.io/kubevirt
- GO-2025-4104 KubeVirt Excessive Role Permissions Could Enable Unauthorized VMI Migrations Between… Also affects kubevirt.io/kubevirt
- CVE-2025-64432 KubeVirt Affected by an Authentication Bypass in Kubernetes Aggregation Layer Also affects kubevirt.io/kubevirt
- CVE-2025-64324 KubeVirt Vulnerable to Arbitrary Host File Read and Write Also affects kubevirt.io/kubevirt
- CVE-2025-64433 KubeVirt Arbitrary Container File Read Also affects kubevirt.io/kubevirt
- CVE-2025-64435 KubeVirt VMI Denial-of-Service (DoS) Using Pod Impersonation Also affects kubevirt.io/kubevirt