CVE-2025-64437
Last modified
CVE-2025-64437 is a medium-severity vulnerability rated 5/10 on the CVSS scale. 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. EPSS estimates a 0.19% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Kubevirt | Kubevirt | < 1.5.3 |
| Kubevirt | Kubevirt | 1.6.0 |
References
- https://github.com/kubevirt/kubevirt/security/advisories/GHSA-2r4r-5x78-mvqfExploit, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2025-64437?
How severe is CVE-2025-64437?
How do I fix CVE-2025-64437?
Are you affected by CVE-2025-64437?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST