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CVE-2025-64434
Good to know:
Date: November 7, 2025
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.
Severity Score
Related Resources (7)
Severity Score
Weakness Type (CWE)
Improper Authentication
CWE-287Top Fix
Upgrade Version
Upgrade to version kubevirt.io/kubevirt - v1.5.3;kubevirt.io/kubevirt - v1.6.0-beta.0.0.20250730135146-231dc69723f3;kubevirt.io/kubevirt - v1.6.1
CVSS v3.1
| Base Score: |
|
|---|---|
| Attack Vector (AV): | LOCAL |
| Attack Complexity (AC): | HIGH |
| Privileges Required (PR): | LOW |
| User Interaction (UI): | NONE |
| Scope (S): | UNCHANGED |
| Confidentiality (C): | NONE |
| Integrity (I): | NONE |
| Availability (A): | HIGH |