Skip to content
Fencer Vulns
high 7.7

CVE-2025-64324 json

KubeVirt Vulnerable to Arbitrary Host File Read and Write

published 2025-11-07 12 mo ago modified 2026-10-19 20 d ago also EUVD-2025-38316 , GHSA-46xp-26xh-hpqh , GO-2025-4110

cvss
7.7
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 15%
public exploits
0
none known

Summary

KubeVirt is a virtual machine management add-on for Kubernetes. The `hostDisk` feature in KubeVirt allows mounting a host file or directory owned by the user with UID 107 into a VM. However, prior to version 1.6.1 and 1.7.0, the implementation of this feature and more specifically the `DiskOrCreate` option (which creates a file if it doesn't exist) has a logic bug that allows an attacker to read and write arbitrary files owned by more privileged users on the host system. Versions 1.6.1 and 1.7.0 fix the issue.

Patch / fix

  • go kubevirt.io/kubevirt 1.6.1, 1.7.0-rc.0
  • kubevirt kubevirt 1.6.1, 1.7.0-rc.0
  • kubevirt SLE Module for Containers 15 SP7 1.6.3-150700.3.13.1

suse advisories SUSE-SU-2025:4330-1

  • govulncheck-vulndb openSUSE Leap 16.0 0.0.20260723T184607-160000.1.1

opensuse advisories openSUSE-SU-2026:21483-1

  • kubevirt Azure Linux 3.0 1.6.3-1
  • kubevirt CBL-Mariner 2.0 0.59.0-31

azure linux advisories AZL-70414AZL-70463

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-64324 updated cvss 6.0

kubevirt.io/kubevirt: KubeVirt: Arbitrary file read/write and privilege escalation via hostDisk feature

  • Red Hat OpenShift Virtualization 4 kubevirt
    affected: no fix available

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
total
Assessed
11 mo ago

Exploit prediction

0.24% chance of exploitation in the next 30 days, higher than 15% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/kubevirt/kubevirt/security/advisories/GHSA-46xp-26xh-hpqh referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 4.0 8.5 CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
GitHub 3.1 7.7 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CNA 4.0 8.5 CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
NVD 3.1 7.7 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected packages

ecosystem package affected fixed in
go kubevirt.io/kubevirt
<1.6.1
>=1.7.0-alpha.0, <1.7.0-rc.0
>=1.6.2, <1.7.0-rc.0
1.6.1
1.7.0-rc.0

Affected products

  • kubevirt kubevirt

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
  • CWE-732 Incorrect Permission Assignment for Critical Resource
  • CWE-123 Write-what-where Condition

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.