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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

Quick assessment

Affected
Kubernetes Image Builder
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Kubernetes（K8s）是Kubernetes开源的一个开源系统，用于自动部署、扩展和管理容器化应用程序。 Kubernetes存在安全漏洞，该漏洞源于默认凭据启用，可能导致未授权root访问。

CVSS 7.5 · High EPSS 0.38% · P30
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I. Basic Information for CVE-2025-7342

Vulnerability Information
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Vulnerability Title
VM images built with Kubernetes Image Builder Nutanix or OVA providers use default credentials for Windows images if user did not override
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
使用硬编码的凭证
Source: CVE Program / CVE List V5
Vulnerability Title
Kubernetes 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Kubernetes（K8s）是Kubernetes开源的一个开源系统，用于自动部署、扩展和管理容器化应用程序。 Kubernetes存在安全漏洞，该漏洞源于默认凭据启用，可能导致未授权root访问。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Kubernetes Image Builder 0 ~ 0.1.44 -

II. Public POCs for CVE-2025-7342

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III. Intelligence Information for CVE-2025-7342

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Other References for CVE-2025-7342 (1)

IV. Related Vulnerabilities

Same product: Image Builder
Same vendor: Kubernetes
Same weakness: CWE-798

V. Comments for CVE-2025-7342

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