CVE-2025-7342: VM images built with Kubernetes Image Builder Nutanix or OVA providers use default credentials for Windows images if user did not override
A security issue was discovered in the Kubernetes Image Builder where default credentials are enabled during the Windows image build process when using the Nutanix or VMware OVA providers. These credentials, which allow root access, are disabled at the conclusion of the build. Kubernetes clusters are only affected if their nodes use VM images created via the Image Builder project and the vulnerability was exploited during the build process, which requires an attacker to access the build VM and modify the image while the build is in progress.
Affected Software
Remediation
Information
Event History
Frequently Asked Questions
What is the severity of CVE-2025-7342?
CVE-2025-7342 is considered a high severity vulnerability due to the presence of default credentials that enable root access during the Windows image build process.
How do I fix CVE-2025-7342?
To mitigate CVE-2025-7342, ensure that updated configurations are applied that disable default credentials during the Windows image building process.
Which versions of Kubernetes Image Builder are affected by CVE-2025-7342?
CVE-2025-7342 affects all versions of Kubernetes Image Builder that utilize the Nutanix or VMware OVA providers.
What impact does CVE-2025-7342 have on system security?
CVE-2025-7342 poses a significant security risk as it allows unauthorized root access through default credentials during the image build process.
Is there a workaround for CVE-2025-7342?
A temporary workaround for CVE-2025-7342 is to manually review and remove any default credentials from the configuration before initiating the image build.