What is the CVSS score of CVE-2025-47282?

CVE-2025-47282 has a CVSS 3.0 base score of 9.9 (Critical). CVSS vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H. EPSS exploitation probability: 0.3%.

Which versions of Kubernetes are affected by CVE-2025-47282?

Organizations using Gardener External DNS Management face critical risk from CVE-2025-47282, a input validation vulnerability rated CVSS 9.9.. A patch is available.

How to fix or mitigate CVE-2025-47282?

Within 7 days: Identify all affected systems and apply vendor patches promptly. Monitor vendor channels for patch availability.

Kubernetes CVE-2025-47282

CRITICAL

Improper Input Validation (CWE-20)

2025-05-19 security-advisories@github.com

Information Disclosure Kubernetes Suse

9.9

CVSS 3.0 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

9.9 CRITICAL

AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

SUSE

CRITICAL

qualitative

Primary rating from GitHub Advisory.

CVSS VectorGitHub Advisory

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Patch released

Mar 31, 2026 - 21:13 nvd

Patch available

Analysis Generated

Mar 28, 2026 - 18:42 vuln.today

CVE Published

May 19, 2025 - 18:15 nvd

CRITICAL 9.9

DescriptionGitHub Advisory

Gardener External DNS Management is an environment to manage external DNS entries for a kubernetes cluster. A security vulnerability was discovered in Gardener's External DNS Management prior to version 0.23.6 that could allow a user with administrative privileges for a Gardener project or a user with administrative privileges for a shoot cluster, including administrative privileges for a single namespace of the shoot cluster, to obtain control over the seed cluster where the shoot cluster is managed. This CVE affects all Gardener installations no matter of the public cloud provider(s) used for the seed clusters/shoot clusters. The affected component is gardener/external-dns-management. The external-dns-management component may also be deployed on the seeds by the gardener/gardener-extension-shoot-dns-service extension when the extension is enabled. In this case, all versions of the shoot-dns-service extension <= v1.60.0 are affected by this vulnerability. Version 0.23.6 of Gardener External DNS Management fixes the issue.

AnalysisAI

Gardener External DNS Management is an environment to manage external DNS entries for a kubernetes cluster. Rated critical severity (CVSS 9.9), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-20. Gardener External DNS Management is an environment to manage external DNS entries for a kubernetes cluster. A security vulnerability was discovered in Gardener's External DNS Management prior to version 0.23.6 that could allow a user with administrative privileges for a Gardener project or a user with administrative privileges for a shoot cluster, including administrative privileges for a single namespace of the shoot cluster, to obtain control over the seed cluster where the shoot cluster is managed. This CVE affects all Gardener installations no matter of the public cloud provider(s) used for the seed clusters/shoot clusters. The affected component is gardener/external-dns-management. The external-dns-management component may also be deployed on the seeds by the gardener/gardener-extension-shoot-dns-service extension when the extension is enabled. In this case, all versions of the shoot-dns-service extension <= v1.60.0 are affected by this vulnerability. Version 0.23.6 of Gardener External DNS Management fixes the issue. Version information: version 0.23.6.

Affected ProductsAI

Gardener's External DNS Management.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.