CVE-2025-24513 kubernetes CVE debrief

Who should care

Siemens Insights Hub Private Cloud operators, Kubernetes and ingress-nginx administrators, and defenders responsible for OT/industrial deployments that rely on the affected product should treat this as relevant. Environments that expose the admission controller or manage sensitive cluster secrets should pay particular attention.

Technical summary

The supplied advisory describes a path traversal condition in ingress-nginx’s Admission Controller flow, where attacker-controlled data are incorporated into a filename inside the container. The advisory states this can lead to denial of service, and that limited disclosure of Secret objects may be possible when combined with other vulnerabilities. The source CVSS vector is CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L, indicating network reachability with high attack complexity and limited confidentiality/availability impact.

Defensive priority

Medium. Prioritize validation and remediation if Siemens Insights Hub Private Cloud is deployed in exposed or sensitive Kubernetes environments, but the supplied severity and CVSS indicate this is not a highest-tier emergency in isolation.

Recommended defensive actions

• Confirm whether your Siemens Insights Hub Private Cloud deployment uses the affected ingress-nginx Admission Controller path referenced in ICSA-25-100-05 and SSA-817234.
• Follow Siemens customer support guidance for the vendor patch or update information referenced in the advisory.
• Restrict administrative access to the admission controller and monitor for unexpected crashes, abnormal file activity, or signs of path traversal behavior.
• Review Kubernetes Secret handling and limit blast radius with least-privilege RBAC, namespace scoping, and strong segmentation around the cluster.
• Track the linked Siemens and CISA advisories for product-specific remediation updates and operational guidance.

Evidence notes

The advisory description supplied in the source corpus states that attacker-provided data are included in a filename by ingress-nginx Admission Controller, causing directory traversal within the container, with possible denial of service and limited Secret disclosure when combined with other vulnerabilities. The source item is the CISA CSAF advisory ICSA-25-100-05 for Siemens Insights Hub Private Cloud, published and modified on 2025-04-08. No KEV listing was provided in the supplied enrichment data. The remediation text in the advisory says to contact customer support to receive patch and update information.

Official resources