CVE-2025-64434
KubeVirt Improper TLS Certificate Management Handling Allows API Identity Spoofing
MEDIUM 6.3EPSS 0.2%
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.
- Affected
- kubevirt
- CVSS v3.1 NVD
- 6.3 MEDIUM
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H - CVSS v3.1 GITHUB
- 4.7 MEDIUM
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H - EPSS
- 0.20% chance of exploitation in the next 30 days, 9th percentile
- Published
- 2025-11-07
- Updated
- 2025-11-10
Proof-of-concept exploits (1)
Security advisories
- kubevirt/kubevirt/security/advisories/GHSA-ggp9-c99x-54gp
- kubevirt/kubevirt/commit/231dc69723f331dc02f65a31ab4c3d6869f40d6a