CVE-2025-64324

KubeVirt Vulnerable to Arbitrary Host File Read and Write

HIGH
7.7
CVSS Score
Published: November 18, 2025 at 10:10 PM UTC
Updated: October 19, 2026 at 01:10 PM UTC
1 product affected across 1 vendorKubevirt

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Severity
HIGH7.7
Exploit prediction
EPSS 0.2%
SSVC
PoC

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Affected range stops below 1.6.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.7.0-rc.0, so it looks safe — our inference, not a vendor statement

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-200CWE-732

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