CVE-2025-14525: Kubevirt.io/kubevirt Denial of Service Vulnerability

MODERATE
Advisory Identifier: GHSA-25mh-hp8x-cgrv
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CVSS 6.4
CWE-770
Published
Advisory Summary

CVE-2025-14525 is a MODERATE (CVSS 6.4) denial of service vulnerability (CWE-770: Allocation of Resources Without Limits or Throttling) affecting Kubevirt.io/kubevirt libraries in the Go ecosystem. The issue involves kubevirt guest agent dos via excessive network interface reports. Remediation is available in the latest vendor maintenance releases.

CVE-2025-14525 at a Glance

CVE Identifier CVE-2025-14525
GHSA Identifier GHSA-25mh-hp8x-cgrv
Severity MODERATE
CVSS v3.1 Base Score 6.4
CWE Classification CWE-770: Allocation of Resources Without Limits or Throttling
Affected Product Kubevirt.io/kubevirt
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 6.4

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:L).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Changed (S:C)
Confidentiality None (C:N)
Integrity Low (I:L)
Availability Low (A:L)

How to Fix CVE-2025-14525

To remediate this vulnerability, upgrade all affected Kubevirt.io/kubevirt dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

kubevirt.io/kubevirt fixed: Latest secure release 
Upgrade kubevirt.io/kubevirt to Latest secure release
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for kubevirt.io/kubevirt

How to Check if You Are Affected

To determine whether your application is affected by CVE-2025-14525, inspect your project dependencies for Kubevirt.io/kubevirt:

inspect dependencies for kubevirt.io/kubevirt

Analyze the terminal output to locate any version of Kubevirt.io/kubevirt in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-770: Allocation of Resources Without Limits or Throttling, where the product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated. In Kubevirt.io/kubevirt, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

A flaw was found in KubeVirt. A user within a virtual machine (VM), if the guest agent is active, can exploit this by causing the agent to report an excessive number of network interfaces. This action can overwhelm the system's ability to store VM configuration updates, effectively blocking changes to the Virtual Machine Instance (VMI). This allows the VM user to restrict the VM administrator's ability to manage the VM, leading to a Denial of Dervice for administrative operations.

CVE-2025-14525 Affected Kubevirt.io/kubevirt Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
kubevirt.io/kubevirt
golang/kubevirt.io/kubevirt
Go
≤ 1.7.0

References

NVD — CVE-2025-14525 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-14525
Kubevirt.io/kubevirt Security Information SECURITY
https://access.redhat.com/security/cve/CVE-2025-14525
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=2421360
Kubevirt.io/kubevirt Source Repository REPOSITORY
https://github.com/kubevirt/kubevirt
Kubevirt.io/kubevirt Release RELEASE
https://github.com/kubevirt/kubevirt/releases/tag/v1.7.0

Frequently Asked Questions

What is CVE-2025-14525?
CVE-2025-14525 is a security vulnerability in Kubevirt.io/kubevirt involving KubeVirt Guest Agent DoS via Excessive Network Interface Reports under CWE-770: Allocation of Resources Without Limits or Throttling.
Which Kubevirt.io/kubevirt versions are affected?
Affected versions include releases prior to current release patches across affected packages: kubevirt.io/kubevirt.
What version fixes CVE-2025-14525?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is kubevirt.io/kubevirt affected?
Yes, kubevirt.io/kubevirt is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2025-14525?
CVE-2025-14525 has a CVSS v3.1 base score of 6.4 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:L.
What CWE is associated with CVE-2025-14525?
CVE-2025-14525 is classified under CWE-770: Allocation of Resources Without Limits or Throttling (The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.).
How can I check Go dependencies for CVE-2025-14525?
Run the dependency tree command: 'inspect dependencies for kubevirt.io/kubevirt'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-25mh-hp8x-cgrv",
  "modified" : "2026-01-27T21:29:13Z",
  "published" : "2026-01-26T21:30:36Z",
  "aliases" : [ "CVE-2025-14525" ],
  "summary" : "KubeVirt Guest Agent DoS via Excessive Network Interface Reports",
  "details" : "A flaw was found in KubeVirt. A user within a virtual machine (VM), if the guest agent is active, can exploit this by causing the agent to report an excessive number of network interfaces. This action can overwhelm the system's ability to store VM configuration updates, effectively blocking changes to the Virtual Machine Instance (VMI). This allows the VM user to restrict the VM administrator's ability to manage the VM, leading to a Denial of Dervice for administrative operations.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:L"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "kubevirt.io/kubevirt"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "1.7.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-14525"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/security/cve/CVE-2025-14525"
  }, {
    "type" : "WEB",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2421360"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/kubevirt/kubevirt"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/kubevirt/kubevirt/releases/tag/v1.7.0"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-770" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-01-27T21:29:13Z",
    "nvd_published_at" : "2026-01-26T20:16:08Z"
  }
}