Improper Certificate Validation Affecting kubevirt.io/kubevirt/pkg/util/tls package, versions <1.5.3>=1.6.0-alpha.0 <1.6.1
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-GOLANG-KUBEVIRTIOKUBEVIRTPKGUTILTLS-13863411
- published9 Nov 2025
- disclosed7 Nov 2025
- creditSébastien Rolland, Mihail Kirov
Introduced: 7 Nov 2025
NewCVE-2025-64434 Â (opens in a new tab)How to fix?
Upgrade kubevirt.io/kubevirt/pkg/util/tls to version 1.5.3, 1.6.1 or higher.
Overview
Affected versions of this package are vulnerable to Improper Certificate Validation due to insufficient peer verification logic in the verifyPeerCert function. An attacker can impersonate privileged API components and execute unauthorized operations by compromising a single instance and leveraging shared credentials.