GHSA-qw6q-3pgr-5cwq · Severity: medium · Ecosystem: go — KubeVirt Arbitrary Container File Read
KubeVirt is a virtual machine management add-on for Kubernetes. Prior to 1.5.3 and 1.6.1, a vulnerability was discovered that allows a VM to read arbitrary files from the virt-launcher pod's file system. This issue stems from improper symlink handling when mounting PVC disks into a VM. Specifically, if a malicious user has full or partial control over the contents of a PVC, they can create a symbolic link that points to a file within the virt-launcher pod's file system. Since libvirt can treat regular files as block devices, any file on the pod's file system that is symlinked in this way can be mounted into the VM and subsequently read. Although a security mechanism exists where VMs are executed as an unprivileged user with UID 107 inside the virt-launcher container, limiting the scope of accessible resources, this restriction is bypassed due to a second vulnerability. The latter causes the ownership of any file intended for mounting to be changed to the unprivileged user with UID 107 prior to mounting. As a result, an attacker can gain access to and read arbitrary files located within the virt-launcher pod's file system or on a mounted PVC from within the guest VM. This vulnerability is fixed in 1.5.3 and 1.6.1.
Conclusion & alert: CVE-2025-64433 is rated Exploit Available (50/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.06%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2025-12-09 | 0.04% | 0.06% | +0.01% |
| 2 | 2025-11-08 | — | 0.04% | — |
Full EPSS history (2 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.5 | 3.1 | MEDIUM |
|
2.8 | 3.6 | [email protected] |
GHSA-qw6q-3pgr-5cwq · Severity: medium · Ecosystem: go — KubeVirt Arbitrary Container File Read
| vendor | priority | summary | link |
|---|---|---|---|
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2025-64433 |
suse
|
medium | CVE-2025-64433 severity moderate: SUSE including 43 source package names (2.2.1-7.23:podman-5.4.2-slfo.1.1_2.1, containerized-data-importer, …), 104 product×package rows across 44 product lines (Container suse/sl-micro/6.1/baremetal-os-container, Image SL-Micro-Azure, … (44 product lines)): Known Not Affected 52, Fixed 51, First Fixed 1. | https://www.suse.com/security/cve/CVE-2025-64433/ |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| kubevirt | kubevirt | < 1.5.3 | cpe:2.3:a:kubevirt:kubevirt:*:*:*:*:*:kubernetes:*:* |
| kubevirt | kubevirt | 1.6.0 | cpe:2.3:a:kubevirt:kubevirt:1.6.0:-:*:*:*:kubernetes:*:* |
| kubevirt | kubevirt | 1.6.0 | cpe:2.3:a:kubevirt:kubevirt:1.6.0:alpha0:*:*:*:kubernetes:*:* |
| kubevirt | kubevirt | 1.6.0 | cpe:2.3:a:kubevirt:kubevirt:1.6.0:beta0:*:*:*:kubernetes:*:* |
| kubevirt | kubevirt | 1.6.0 | cpe:2.3:a:kubevirt:kubevirt:1.6.0:rc0:*:*:*:kubernetes:*:* |
| kubevirt | kubevirt | 1.6.0 | cpe:2.3:a:kubevirt:kubevirt:1.6.0:rc1:*:*:*:kubernetes:*:* |