CVE-2025-64437 — Link Following in Kubevirt
Severity
5.0MEDIUMNVD
EPSS
0.0%
top 93.08%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedNov 7
Latest updateNov 17
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 vuln…
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:LExploitability: 0.8 | Impact: 3.7
Affected Packages3 packages
Patches
🔴Vulnerability Details
4OSV▶
KubeVirt Isolation Detection Flaw Allows Arbitrary File Permission Changes in kubevirt.io/kubevirt↗2025-11-17