CVE-2023-5528 HIGH

CVE-2023-5528: Kubernetes - Windows nodes - Insufficient input sanitization in in-tree storage plugin leads to privilege escalation

Vendor Kubernetes
Product kubelet
Weakness CWE-20 · Input validation
Published November 14, 2023
Last update February 25, 2026
View on NVD All CVEs

CVSS base score

7.2/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

A security issue was discovered in Kubernetes where a user that can create pods and persistent volumes on Windows nodes may be able to escalate to admin privileges on those nodes. Kubernetes clusters are only affected if they are using an in-tree storage plugin for Windows nodes.

Key dates

02Disclosure timeline

November 14, 2023 CVE published
February 25, 2026 Record updated