CVE-2025-64434

MEDIUM EPSS 6.0%
Published Nov 7, 20257mo ago · Modified Jun 17, 20261w ago
6.3 CVSS 3.1
Medium
Find Similar
Published Nov 7, 2025 7mo ago
Last Modified Jun 17, 2026 1w ago

Description

KubeVirt is a virtual machine management add-on for Kubernetes. Prior to 1.5.3 and 1.6.1, due to the peer verification logic in virt-handler (via verifyPeerCert), an attacker who compromises a virt-handler instance, could exploit these shared credentials to impersonate virt-api and execute privileged operations against other virt-handler instances potentially compromising the integrity and availability of the VM managed by it. This vulnerability is fixed in 1.5.3 and 1.6.1.

CVSS Details

Base Score
6.3
Exploitability
1.0
Impact
5.2
Vector string
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H
Attack Vector Local
Attack Complexity High
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
6.0% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-287 Improper Authentication Authentication

Affected Products 2

VendorProductVersionRange
kubevirtkubevirt* <1.5.3
kubevirtkubevirt1.6.0any

References 4

  • github.com https://github.com/kubevirt/kubevirt/commit/231dc69723f331dc02f65a31ab4c3d6869f40d6a
    Patch
  • github.com https://github.com/kubevirt/kubevirt/commit/af2f08a9a186eccc650f87c30ab3e07b669e8b5b
    Patch
  • github.com https://github.com/kubevirt/kubevirt/commit/b9773bc588e6e18ece896a2dad5336ef7a653074
    Patch
  • github.com https://github.com/kubevirt/kubevirt/security/advisories/GHSA-ggp9-c99x-54gp
    ExploitVendor Advisory

Remediation

  • github.com https://github.com/kubevirt/kubevirt/commit/231dc69723f331dc02f65a31ab4c3d6869f40d6a
    Patch
  • github.com https://github.com/kubevirt/kubevirt/commit/af2f08a9a186eccc650f87c30ab3e07b669e8b5b
    Patch
  • github.com https://github.com/kubevirt/kubevirt/commit/b9773bc588e6e18ece896a2dad5336ef7a653074
    Patch