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 change the ownership of arbitrary files on the host node to the unprivileged user with UID 107 (the same user used by virt-launcher) thus, compromising the CIA (Confidentiality, Integrity and Availability) of data on the host. To successfully exploit this vulnerability, an attacker should be in control of the file system of the virt-launcher pod. This vulnerability is fixed in 1.5.3 and 1.6.1.

The following products are affected by CVE-2025-64437 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-64437.

URL	Resource
https://github.com/kubevirt/kubevirt/commit/3ce9f41c54d04a65f10b23a46771391c00659afb
https://github.com/kubevirt/kubevirt/commit/8644dbe0d04784b0bfa8395b91ecbd6001f88f6b
https://github.com/kubevirt/kubevirt/commit/f59ca63133f25de8fceb3e2a0e5cc0b7bdb6a265
https://github.com/kubevirt/kubevirt/security/advisories/GHSA-2r4r-5x78-mvqf
https://nvd.nist.gov/vuln/detail/CVE-2025-64437
https://www.cve.org/CVERecord?id=CVE-2025-64437