Logic Flaw in KubeVirt Affects Kubernetes Management
CVE-2025-64435

5.3MEDIUM

Key Information:

Vendor

Kubevirt

Status
Kubevirt
Vendor
CVE Published:
7 November 2025

What is CVE-2025-64435?

KubeVirt, a virtual machine management add-on for Kubernetes, has a vulnerability due to a logic flaw in the virt-controller prior to version 1.7.0-beta.0. This flaw can enable an attacker to create a malicious pod with labels matching those of the legitimate virt-launcher pod linked to a Virtual Machine Instance (VMI). Such an action can cause the virt-controller to link this fraudulent pod with the VMI, leading to misleading status updates and potential disruption of service, ultimately resulting in a Denial-of-Service (DoS). The vulnerability has been addressed in version 1.7.0-beta.0.

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Affected Version(s)

kubevirt < 1.7.0-beta.0

References

https://github.com/kubevirt/kubevirt/security/advisories/...
x_refsource_CONFIRM
https://github.com/kubevirt/kubevirt/commit/9a6f4a3a70799...
x_refsource_MISC

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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