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Vulnerability record · CVE-2025-64436 · published 7 November 2025

CVE-2025-64436: Kubevirt improper privilege management vulnerability

Kubevirt · Kubevirt

KubeVirt is a virtual machine management add-on for Kubernetes. In 1.5.0 and earlier, the permissions granted to the virt-handler service account, such as the ability to update VMI and patch nodes, could be abused to force a VMI migration to an attacker-controlled node. This vulnerability could otherwise allow an attacker to mark all nodes as unschedulable, potentially forcing the migration or creation of privileged pods onto a compromised node.

6.9 CVSS 4.0 Medium EPSS 0.26% · top 84.1% CWE-269 · Improper privilege managementCWE-276 · Incorrect default permissions
6.9CVSS 4.0 base score
0.26%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References, 1 tagged exploit
17 Jun 2026Last modified by NVD

Description

KubeVirt is a virtual machine management add-on for Kubernetes. In 1.5.0 and earlier, the permissions granted to the virt-handler service account, such as the ability to update VMI and patch nodes, could be abused to force a VMI migration to an attacker-controlled node. This vulnerability could otherwise allow an attacker to mark all nodes as unschedulable, potentially forcing the migration or creation of privileged pods onto a compromised node.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/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:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/kubevirt/kubevirt/security/advisories/GHSA-7xgm-5prm-v5gc ExploitVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.9CVE-2020-14316Kubevirt vulnerabilityA flaw was found in kubevirt 0.29 and earlier. Virtual Machine Instances (VMIs) can be used to gain access to the host's filesystem. Successful explo…EPSS 1.6%8.5CVE-2025-64324Kubevirt information exposure vulnerabilityKubeVirt is a virtual machine management add-on for Kubernetes. The `hostDisk` feature in KubeVirt allows mounting a host file or directory owned by …EPSS 0.22%8.2CVE-2023-26484Kubevirt incorrect authorization vulnerabilityKubeVirt is a virtual machine management add-on for Kubernetes. In versions 0.59.0 and prior, if a malicious user has taken over a Kubernetes node wh…EPSS 0.61%7.3CVE-2026-13201Kubevirt vulnerabilityA flaw was found in KubeVirt's safepath package used by virt-handler. The OpenAtNoFollow function uses O_PATH|O_NOFOLLOW to obtain a file descriptor …EPSS 0.27%6.5CVE-2026-13208Kubevirt improper authentication vulnerabilityA flaw was found in KubeVirt's virt-handler domain notify server. The gRPC handlers for HandleDomainEvent and HandleK8SEvent derive the VMI identity …EPSS 0.13%6.5CVE-2025-64433Kubevirt path traversal vulnerabilityKubeVirt 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 arb…EPSS 0.49%6.5CVE-2022-1798Kubevirt improper input validation vulnerabilityA path traversal vulnerability in KubeVirt versions up to 0.56 (and 0.55.1) on all platforms allows a user able to configure the kubevirt to read arb…EPSS 0.38%6.5CVE-2020-1701Kubevirt incorrect permission assignment vulnerabilityA flaw was found in the KubeVirt main virt-handler versions before 0.26.0 regarding the access permissions of virt-handler. An attacker with access t…EPSS 0.75%

Source: NIST National Vulnerability Database (record CVE-2025-64436), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.