Skip to main content
CVE-2025-7342VulnerabilityPublished Updated

CVE-2025-7342: Kubernetes Image Builder · Use of Hard-coded Credentials

Affects Kubernetes Image BuilderSource CVE Database V5

0

Not known to be exploited · CVSS 7.5 High.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 3.1 base score
7.5High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 31% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 17 Aug 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.

What to do

Affected software

ProductAffectedFixed in
Kubernetes Image BuilderAffected
  • =0
Fixed in–

AI-suggested

European organizations should implement strict access controls and network segmentation around their Kubernetes Image Builder environments, especially the build VMs. Limit access to build VMs to authorized personnel only and monitor for unusual activity during image builds. Employ multi-factor authentication and strong credential management to prevent unauthorized access. Use ephemeral build environments that are destroyed after each build to reduce persistent attack surfaces. Implement image signing and verification processes to detect unauthorized modifications before deployment. Regularly audit and update build tools and environments to the latest secure versions once patches become available. Consider using alternative image build processes or providers that do not enable hard-coded credentials. Establish continuous monitoring and alerting for suspicious activities in the build pipeline. Finally, conduct security training for DevOps teams to raise awareness of build-time vulnerabilities and secure image creation practices.

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.

References

Community reviews

Loading reviews…