Improper Authentication in Kubevirt - CVE-2025-64434
Published: November 7, 2025 / Updated: November 7, 2025
Vulnerability identifier: #VU118180
CSH Severity: Low
CVSS v4: 5.7 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-64434
CWE-ID: CWE-287
Exploitation vector: Local access
Exploit availability:
Public exploit is available
Vulnerability details
The vulnerability allows a local user to bypass authentication process.
The vulnerability exists due to improper TLS certificate management within virt-handler. A local user can execute privileged operations against other virt-handler instances.
Affected software
Kubevirt
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server for SAP Applications 15
Containers Module
kubevirt-virtctl-debuginfo
kubevirt-virtctl
kubevirt-manifests
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server for SAP Applications 15
Containers Module
kubevirt-virtctl-debuginfo
kubevirt-virtctl
kubevirt-manifests
How to mitigate CVE-2025-64434
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
kubevirt-virtctl-debuginfo - update to 1.6.3-150700.3.13.1
kubevirt-virtctl - update to 1.6.3-150700.3.13.1
kubevirt-manifests - update to 1.6.3-150700.3.13.1
kubevirt-virtctl - update to 1.6.3-150700.3.13.1
kubevirt-manifests - update to 1.6.3-150700.3.13.1